Tonkatsu Sauce Recipe

Ingredients

• 1 tablespoon vegetable oil
• 1 small onion (chopped)
• 1 small apple (4 ounces, peeled and chopped)
• 1/2 pound tomatoes (chopped)
• 2 cloves garlic
• 1 cup sake
• 1 1/2 cups water
• 1 teaspoon salt
• 2 tablespoons sugar
• 1/2 cup soy sauce (or to taste)
• 1/4 cup white vinegar
• 1-1/2 teaspoons tomato paste
• 1 bay leaf
• 1/2 teaspoon cayenne
• 1/4 teaspoon white pepper
• 1/4 teaspoon cinnamon
• 1/4 teaspoon nutmeg
• 1/4 teaspoon allspice
• 1/2 cup Worcestershire sauce
• 1/4 cup ketchup
• 1/4 cup Worcestershire sauce
• 1 teaspoon sugar (or use honey or brown sugar)
• 1 tablespoon soy sauce