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Flavorful Tonkotsu Ramen Recipe Easy Authentic Pork Bone Broth Guide

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This authentic Tonkotsu ramen recipe features a rich, creamy pork bone broth simmered for hours to develop deep umami flavors. Perfect for cozy dinners, it brings a taste of Japan to your home with simple ingredients and patient cooking.

Ingredients

Scale
  • 4–5 pounds pork bones (femur and neck bones mix)
  • 1–2 pork trotters (optional)
  • 1 large onion, halved
  • 6 cloves garlic, smashed
  • 2-inch piece ginger, sliced
  • 1 stalk leek, halved (or substitute green onions)
  • 5–6 quarts water
  • Kosher salt, to taste
  • 2–3 tablespoons soy sauce
  • 1 tablespoon miso paste (optional)
  • Ramen noodles (fresh or dried, 4 servings)
  • Toppings: chashu pork slices, soft-boiled eggs, nori sheets, bamboo shoots, sliced green onions (optional but recommended)

Instructions

  1. Rinse pork bones under cold water to remove blood. Place in large stockpot and cover with cold water. Bring to rolling boil over high heat and boil for 10 minutes to blanch bones.
  2. Drain and discard water. Rinse bones and pot thoroughly to remove scum and residue.
  3. Return bones to pot and add fresh cold water (5-6 quarts). Add onion, garlic, ginger, and leek. Bring to gentle boil, then reduce heat to low to maintain steady simmer. Skim scum regularly during first two hours. Keep pot partially covered.
  4. Simmer broth for at least 6 hours, preferably 8 hours, until broth turns milky white and thick. Add boiling water as needed to keep bones submerged.
  5. Remove pot from heat and strain broth through fine mesh strainer into clean container. Discard solids. For extra smoothness, strain again through cheesecloth.
  6. Return strained broth to pot. Stir in soy sauce, salt, and miso paste if using. Taste and adjust seasoning. Keep warm.
  7. Cook ramen noodles according to package instructions (2-3 minutes for fresh). Drain and divide into bowls. Ladle hot broth over noodles and add desired toppings.

Notes

Blanch bones thoroughly to remove impurities and prevent cloudy broth. Maintain a gentle simmer around 190°F (88°C) to extract collagen without cloudiness. Skim scum regularly during first hours. Season broth after straining to avoid over-seasoning. Broth thickens when refrigerated due to gelatin; reheat gently before serving. For gluten-free, substitute tamari for soy sauce and use gluten-free noodles. Instant Pot can reduce cooking time to about 2 hours but broth may be less silky.

Nutrition

Keywords: Tonkotsu ramen, pork bone broth, authentic ramen, Japanese ramen, slow-cooked broth, homemade ramen, ramen recipe, pork broth, comfort food

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