Soki Jiru | History and Preparation of Okinawa’s Representative Native Dish of Bone-in Pork
Soki jiru is a traditional local dish enjoyed throughout Okinawa Prefecture. It is a clear broth made by carefully simmering pork spare ribs (soki) and combining them with kelp and seasonal vegetables, occupying an important place in Okinawa’s food culture. This article comprehensively explains the appeal of this dish, from its historical background to detailed preparation methods and community preservation efforts.
What is Soki Jiru?
Soki jiru is a representative soup dish from Okinawa Prefecture made with “soki bones” (buni), which are bone-in spare ribs of pork. “Soki” refers to pork ribs in the Okinawan dialect, and those with bone attached are specifically called “soki bones.”
The greatest characteristic of this dish is that by simmering the bone-in meat over a long period, collagen dissolved from the bones and the umami of the meat impart deep richness to the broth. Despite its simple seasoning as a clear soup, the complex umami of pork, kelp, and bonito dashi harmonize beautifully, and as a nourishing dish with excellent nutritional balance, it is beloved throughout the prefecture.
While “soki jiru” is the common name in the prefecture, it is also called “soki bone soup” or “soki soup,” and is passed down not only as a home-cooked dish but as an essential dish for celebrations and annual events.
History, Origins, and Related Events
Traditions of Pig New Year and New Year’s Eve
The history of soki jiru is deeply connected to Okinawa’s “Pig New Year” tradition. In the past, on the twenty-ninth day of the lunar calendar in December, Tushinuyuuru (lunar New Year’s Eve), Okinawans would butcher a whole pig and eat it prepared in various dishes throughout the lunar New Year with their families. This tradition gave rise to what is called “Pig New Year.”
When butchering the pig, the soki bones (spare rib portions) were simmered until tender with kelp and daikon radish on New Year’s Eve and appeared on the family table as soki jiru. Eating this dish to welcome the new year was the traditional way Okinawans celebrated the changing of the year.
Positioning as Festival Food
In old Okinawa, pork was a delicacy and not eaten daily. Therefore, soki jiru was positioned as a dish for special occasions and served an important role as a offering for the lunar New Year and various celebratory events.
Even today, it is an essential dish for many households during the lunar New Year, and as it is frequently served at weddings and memorial services, it has become a representative festival food of Okinawa Prefecture.
Continuing the Tradition of Ryukyuan Cuisine
Soki jiru is a representative example of the Ryukyuan cooking method characterized by “bringing out the essence of dashi and finishing without adding excess seasonings.” The cooking technique of drawing out the maximum umami from ingredients themselves represents the food culture wisdom passed down since the Ryukyu Kingdom era.
Major Transmission Regions
Soki jiru is a local dish made and eaten throughout Okinawa Prefecture. From the northern to southern parts of the main island, to the Miyako and Yaeyama island groups, it is enjoyed as a home-style taste in every region of the prefecture.
While there are slight variations in vegetables used and seasoning depending on region and household, the basic cooking method of carefully simmering bone-in pork is common, and it has become one of the important food cultures forming the identity of Okinawan people.
In restaurants, it is served at food stalls and Okinawan restaurants throughout the prefecture and is popular with tourists. It is also provided in school meals as part of local cuisine education, promoting the transmission of food culture to the next generation.
Main Ingredients Used
Soki (Bone-in Pork Spare Ribs)
This is the star ingredient of soki jiru. By using spare ribs with bone attached and simmering them for an extended time, umami components and collagen dissolve from the bones, adding deep richness and nourishment to the broth. It is the same cut as spare ribs, but in Okinawa, “soki” is the common name.
Kelp
One of the essential ingredients in Okinawan cuisine, kelp is always included in soki jiru. Glutamic acid, the umami component of kelp, creates a synergistic effect with the umami of pork, deepening the overall flavor. It is often tied into a knot before being added and creates an attractive presentation.
Seasonal Vegetables
The traditional method is to add daikon radish in winter and winter melon in summer. Daikon absorbs the pork fat and becomes tender with increased sweetness, while winter melon, being high in water content, provides a refreshing flavor in hot seasons. Some households also add carrots or papaya (green papaya).
Dashi and Seasonings
Bonito dashi is the foundation, with salt and soy sauce used to season simply. Following Ryukyuan cooking tradition, seasonings are kept minimal to bring out the natural umami of ingredients.
Occasions and Seasons for Eating
Lunar New Year (First Day of Lunar Calendar)
The most important time for soki jiru is the lunar New Year. As mentioned earlier, the tradition of eating soki jiru made on Tushinuyuuru (the twenty-ninth day of the lunar calendar in December) to welcome the new year continues in many households today.
Celebrations and Memorial Services
Soki jiru is served as an important dish at auspicious occasions such as weddings, birth celebrations, and housewarming parties, as well as at memorial services. Its positioning as a dish for special occasions remains unchanged in modern times.
The Daily Table
While it has aspects of being a special-occasion dish, in modern times it is also enjoyed as an everyday home-cooked meal. Many households make it on weekends, taking time with the preparation to enjoy it with family. It is served at food stalls and in school meals throughout the prefecture, making it an increasingly familiar dish.
Seasonal Variations
By changing the vegetables used with the seasons, it is a dish that can be enjoyed year-round. In winter, warm soki jiru made with daikon heats the body, while in summer, the refreshing flavor of winter melon eases the heat.
Preparation Method (Basic Recipe)
Ingredients (Serves 4)
- Soki (bone-in pork spare ribs): 600g
- Kelp: 20g (dried)
- Daikon radish: 400g (or winter melon)
- Carrot: 1 (approximately 150g)
- Water: approximately 1500ml
- Bonito dashi: as needed
- Salt: 1-2 teaspoons
- Soy sauce: 1-2 tablespoons
- Awamori or sake: 2 tablespoons (for preliminary cooking)
- Ginger: 1 piece (for preliminary cooking)
Preparation
- Rehydrating kelp: Rehydrate dried kelp in water and tie it into a knot. Save the soaking liquid.
- Preparing vegetables: Cut daikon into 2-3cm thick rounds or half-moons and trim the edges. Cut carrots similarly.
- Preliminary cooking of soki: Cut soki into bite-sized pieces. In a large pot, add plenty of water, soki, ginger, and awamori, and bring to a boil over high heat.
Cooking Steps
Step 1: Preliminary Cooking of Soki and Skimming
Once the pot boils, reduce to low heat and carefully skim off impurities. This step is crucial as neglecting it will cloud the finished flavor; skim the surface several times during cooking. After about 30 minutes of preliminary cooking, remove the soki and rinse the surface under running water. Discard the cooking water.
Step 2: Begin Main Simmering
In a new pot, add 1500ml of water and the kelp soaking liquid. Add the rinsed soki and tied kelp, and bring to a boil over high heat. Again carefully skim off impurities and reduce to low heat.
Step 3: Long Simmering
Simmer gently over low heat for 1.5 to 2 hours. If liquid reduces too much, add more water. The secret to deliciousness is taking sufficient time until the soki becomes tender enough to break apart easily with chopsticks. Continue to carefully remove floating fat and impurities throughout.
Step 4: Add Vegetables
Once the soki is sufficiently tender, add daikon and carrot. Return to a boil, then reduce to low heat and simmer for 30-40 minutes until vegetables are tender.
Step 5: Seasoning
Once vegetables are tender, adjust flavor with bonito dashi (powdered dashi is acceptable), salt, and soy sauce. Keep seasonings modest, aiming to bring out the natural umami of ingredients. Add seasonings gradually while tasting.
Step 6: Finishing
Simmer over low heat for 5-10 minutes to blend the flavors, then it is complete. Serve in bowls and garnish with green onions or island chili peppers as desired.
Cooking Tips
- Careful skimming: Remove impurities and fat multiple times for a clear and beautiful broth.
- Heat control: After bringing to a boil over high heat, always reduce to low heat and simmer gently so the meat becomes tender.
- Take your time: Simmer for at least 2 hours, or preferably prepare the day before and let it rest overnight for even better flavor development.
- Modest seasonings: Following Ryukyuan cooking tradition, use less salt and soy sauce to bring out ingredient umami.
How to Eat
Soki jiru is served in large bowls. Since it contains bone-in meat, the Okinawan way is to eat it by hand, biting into it while holding it. Eating the meat attached to the bone carefully allows you to savor all the umami.
The broth is nutrient-rich with collagen and umami components dissolved in it, so finishing every last drop is the way of a connoisseur. Beyond being an accompaniment to rice, serving it as a rice bowl is also popular.
As a condiment, diced green onions or “kooreegusu,” island chili peppers pickled in awamori, can be added to create variation in flavor.
Nutrition and Health Benefits
Soki jiru is a healthy dish with excellent nutritional balance.
Protein and Collagen
High-quality protein is obtained from pork, and collagen dissolved from bones through long simmering is said to have beauty and health benefits. Collagen maintains skin elasticity and helps maintain joint health.
B Vitamins
Pork is rich in vitamin B1, which aids fatigue recovery and metabolism promotion. The wisdom of maintaining physical strength in Okinawa’s hot climate is embedded in this dish.
Dietary Fiber and Minerals
Dietary fiber is obtained from vegetables such as daikon and winter melon, while minerals and iodine are obtained from kelp. Glutamic acid, the umami component of kelp, also has the effect of activating brain function.
Low-Calorie and Healthy
Through the process of carefully removing excess fat during cooking, the calorie content is more modest than appearances suggest. As a clear soup with controlled salt content, it is a dish suited to modern health-conscious eating.
Preservation and Transmission Efforts
Home Transmission
Soki jiru has been passed down from mother to daughter, grandmother to grandchild as a home-cooked dish. Each household maintains its own slightly different “mother’s flavor,” preserving their family’s unique taste.
Particularly before the lunar New Year, many households see family members cooking soki jiru together, transmitting both cooking skills and family bonds through the act of cooking.
School Meal Implementation
School meals throughout Okinawa Prefecture include soki jiru as part of local cuisine education. By providing opportunities for children to experience regional food culture, transmission to the next generation is promoted. Meal newsletters explain the dish’s history and cultural background, making it an important food education material.
Restaurant Service
Food stalls and Okinawan restaurants throughout the prefecture serve soki jiru as a standard menu item, playing a role in conveying Okinawan food culture to tourists. Many long-established eateries continue to prepare it using unchanged methods since their founding, preserving the traditional flavor.
Commercialization Efforts
In recent years, soki jiru has been commercialized as retort pouches and frozen foods, making it easy to enjoy Okinawan flavor outside the prefecture. Popular as a souvenir, it plays a role in promoting Okinawan food culture nationally.
Food manufacturers such as Okiham conduct product development that preserves traditional methods while adapting to modern lifestyles, creating an environment where busy modern people can easily enjoy local cuisine.
Information Sharing via SNS
Centered among younger generations, photos and recipes of homemade soki jiru are shared on Instagram, Twitter, and other social media. Searching hashtags such as #Sokijiru and #OkinawaCuisine reveals numerous posts, with contemporary methods advancing food culture transmission.
Food researchers and restaurants actively share information, introducing everything from traditional preparation methods to modern arrangements.
Utilization as Tourism Resource
In Okinawa Prefecture’s tourism promotion, soki jiru is positioned as an important food culture resource. It is featured in cooking experience programs and food culture tours, providing opportunities for tourists to actually experience preparing it.
Soki Jiru and Okinawan Food Culture
Symbol of Pork Culture
In Okinawa, there is a saying that “everything but the pig’s squeal is eaten,” reflecting a food culture where pork is utilized completely. Soki jiru is the crystallization of wisdom in making a seemingly difficult cut to cook—bone-in meat—delicious through time and effort.
This thorough utilization reflects the spirituality of Okinawan people who value limited resources, and contains gratitude for food ingredients.
Eating Habits of the Long-Lived Island
One reason Okinawa is known as a prefecture of longevity is its nutritionally balanced traditional food culture. Soki jiru, which combines protein, vegetables, and seaweed in balanced proportions, is a representative example of eating habits supporting healthy longevity.
By slowly extracting maximum nutrition from ingredients through time-consuming cooking and using minimal excess seasoning, the cooking method aligns with modern health consciousness.
Food Fostering Community Bonds
In Okinawa, the spirit of “yui-maaru” (mutual assistance) is valued, and community and family bonds are cherished. A time- and labor-intensive dish like soki jiru was prepared for special occasions when family and relatives gathered, serving to deepen bonds by sharing a meal.
Sharing soki jiru made in large pots and eaten together by all symbolizes Okinawan communal culture.
Cooking Method Adapted to Climate
Cooking methods adapted to Okinawa’s hot and humid climate are also reflected in soki jiru. Using winter melon in summer cools the body, while using daikon in winter warms it—this seasonal ingredient selection represents wisdom rooted in climate and natural environment. Also, the effort to improve preservation through thorough cooking is wisdom inherited from an era without refrigeration.
Conclusion
Soki jiru, as a representative local dish of Okinawa Prefecture, has sustained residents’ eating habits throughout long history and formed cultural identity. This dish, made by carefully simmering pork spare ribs and combining them with kelp and seasonal vegetables, embodies the heart to cherish ingredients, the spirit of valuing family and community bonds, and the nutritional wisdom supporting health.
While it has aspects of being special-occasion food for the lunar New Year and celebrations, it is also enjoyed as everyday home cooking, and is reliably passed to the next generation through school meals, restaurants, and commercialization. Prepared with time and effort, soki jiru reminds us in our modern society that emphasizes efficiency and speed of the importance of cooking slowly and unhurriedly, sharing meals with family at the table.
When visiting Okinawa, be sure to taste authentic soki jiru and experience Okinawa’s rich food culture alongside its deep flavors. Also, by taking time to prepare it carefully at home, you can feel the thoughts about food that Okinawan people have cherished.
