4 tablespoons soy sauce
2 tablespoons smooth peanut butter
1 tablespoon dark brown sugar
2 teaspoons apple cider vinegar
1 garlic clove, finely minced
2 teaspoons sesame seed oil
1 teaspoon hot sauce (more or less to taste)
1/8 teaspoon black pepper

Put all the ingredients into a blender and blitz to a smooth liquid. It's as simple as that!