Ramen food truck is a complete guide to building a portable, high-volume ramen operation, from tonkotsu broth to tare, noodles, and toppings. This recipe focuses on a rich, creamy pork bone broth that can be made ahead, paired with chewy fresh noodles and a soft-boiled egg. It works because the broth freezes beautifully, the components hold well on a truck, and each bowl is assembled to order in under two minutes.
Ingredients
- 4 lb (1.8 kg) pork neck bones or trotters, cut into 2–3 inch pieces
- 1 lb (450 g) pork belly or fatback, sliced thin
- 1 large onion, halved
- 1 head garlic, cut in half crosswise
- 1 (2-inch) piece ginger, sliced
- 2 scallions, white parts only
- 1 oz (28 g) dried shiitake mushrooms (optional)
- 12 cups (2.8 L) water, plus more for blanching
- 1 cup (240 ml) soy sauce
- 1/2 cup (120 ml) mirin
- 1/4 cup (50 g) sugar
- 1/4 cup (60 ml) sake (optional)
- 8 portions fresh ramen noodles (about 5 oz / 140 g each)
- 8 large eggs
- 1/2 cup (120 ml) soy sauce (for eggs)
- 1/2 cup (120 ml) mirin (for eggs)
- 1/2 cup (120 ml) water (for eggs)
- 1 sheet nori, cut into 8 rectangles
- 4 scallions, green parts only, sliced thin
- 1/2 cup (50 g) bean sprouts (optional)
- 1/2 cup (50 g) corn kernels (optional)
- 1 tbsp (15 ml) sesame oil (for drizzling)
- Shichimi togarashi (Japanese seven spice) for serving
Instructions
- Blanch the bones: Place pork bones in a large pot, cover with cold water, and bring to a boil over high heat. Boil for 5 minutes, then drain and rinse the bones thoroughly under cold water. This removes impurities and prevents a cloudy broth.
- Start the broth: In a clean large pot (at least 8 qt / 7.5 L), add the blanched bones, pork belly (or fatback), onion, garlic, ginger, scallion whites, and shiitake mushrooms if using. Pour in 12 cups (2.8 L) of water. Bring to a boil over high heat, then reduce to a rolling simmer. Skim off any foam that rises for the first 30 minutes.
- Simmer long and low: Keep the broth at a low boil (not a hard boil) for 8–12 hours. Add more water as needed to keep the bones submerged. The broth is done when it turns milky white and rich. For a truck, you can simmer it overnight on low heat, but check periodically.
- Make the tare: In a small saucepan, combine 1 cup (240 ml) soy sauce, 1/2 cup (120 ml) mirin, 1/4 cup (50 g) sugar, and 1/4 cup (60 ml) sake if using. Heat over medium, stirring, until sugar dissolves. Do not boil. Set aside to cool.
- Soft-boil the eggs: Bring a pot of water to a boil. Gently lower 8 eggs in with a slotted spoon. Boil for 6 minutes 30 seconds for a jammy yolk. Immediately transfer to an ice bath. Peel when cool.
- Marinate the eggs: In a zip-top bag or container, combine 1/2 cup (120 ml) soy sauce, 1/2 cup (120 ml) mirin, and 1/2 cup (120 ml) water. Add the peeled eggs and refrigerate for at least 2 hours or up to 24 hours. Turn occasionally.
- Cook the noodles: Bring a large pot of water to a rolling boil. Cook fresh ramen noodles according to package directions (usually 1–2 minutes). Drain well. For a truck, cook noodles to order to avoid sogginess.
- Assemble the bowl: For each serving, place 2–3 tablespoons (30–45 ml) of tare in the bottom of a large bowl. Add 1 1/2 cups (360 ml) of hot broth and stir. Add the cooked noodles. Top with 2–3 slices of pork belly (from the broth), a halved soft-boiled egg, a sheet of nori, sliced scallions, and any other toppings like bean sprouts or corn. Drizzle with sesame oil.
- Serve immediately: Finish with shichimi togarashi at the truck for customers to add.
Tips
- Broth consistency: If the broth is too thin, simmer longer uncovered to reduce. If too thick, thin with water or unsalted chicken stock.
- Make ahead: The broth can be made up to 3 days ahead and refrigerated, or frozen for up to 3 months. Reheat gently on the truck.
- Don’t skip blanching: Skipping the initial blanch results in a murky broth with off-flavors. It’s a crucial step.
- Noodle timing: Overcooking noodles is the most common mistake. They should be al dente with a slight chew. Cook them to order for best texture.
Serving Suggestions
Serve the ramen in large, deep bowls with spoons and chopsticks. Offer additional toppings like chili oil, pickled ginger, or extra nori on the side. Pair with a simple side of gyoza or a cold beer (for adults of legal drinking age, drink responsibly).
Variations
- Shoyu ramen: Use a lighter chicken-based broth and increase the soy sauce in the tare. Top with chicken chashu.
- Miso ramen: Add 2–3 tablespoons (30–45 g) of white or red miso paste to the tare per bowl. Use a chicken or vegetable broth.
- Vegetarian: Replace the pork bones with a mix of shiitake mushrooms, kombu, and a large onion. Simmer for 1 hour. Use the same tare and toppings minus the pork.
Storage and Reheating
Store the broth, tare, and eggs separately in airtight containers. Broth keeps 3–4 days refrigerated or up to 3 months frozen. Tare keeps 2 weeks refrigerated. Eggs keep 3–4 days in the marinade. To reheat, bring broth to a boil on the truck, cook fresh noodles, and assemble. Never reheat noodles that have been dressed; they will be mushy.
Frequently Asked Questions
Can I use a pressure cooker? Yes, a pressure cooker can reduce the broth time to 2–3 hours. Use the same ingredients, but only add 8 cups (1.9 L) of water. Cook on high pressure for 2 hours, then natural release.
What is the best cut of pork for chashu? Pork belly is traditional, but pork shoulder works too. For a leaner option, use pork loin, but it will be drier. Cook the chashu in the broth for extra flavor.
How do I keep the broth hot on the truck? Use a commercial soup kettle or a large insulated thermos. Maintain the broth at 165°F (74°C) or above for food safety. Stir occasionally to prevent scorching.
Can I use dried noodles instead of fresh? Yes, but the texture will be different. Cook dried noodles according to package directions, which usually take longer. They are more forgiving but less chewy.
How do I make the eggs ahead of time? Soft-boiled eggs can be made and marinated up to 3 days in advance. Keep them in the marinade in the fridge. Take them out 30 minutes before serving to take the chill off.
Is it safe to leave the broth simmering overnight? If you are on the truck, yes, as long as you maintain a rolling boil and check it periodically. For home, it’s safer to refrigerate and reheat the next day.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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