Gather your ingredients.

In a mixing bowl, whisk together the soy sauce, rice vinegar, honey, and sesame oil.

Add the garlic powder, ginger, and red pepper flakes to the mixture.

In a small bowl, dissolve the cornstarch in a tablespoon of water.

Pour the cornstarch mixture into the sauce and whisk well.

Transfer the sauce to a small saucepan and heat over low-medium heat, stirring constantly until it thickens slightly.

Taste your sauce and adjust any ingredients as needed.

Let it cool and store in an airtight container in the refrigerator if not using immediately.