1/2 cup low-sodium soy sauce
1/2 cup low-sodium vegetable stock, or water
1 teaspoon sesame oil
1/2 Tablespoon rice vinegar
2 cloves garlic, minced
1 - 2 teaspoon grated ginger
1 Tablespoon sugar or honey
1 Tablespoon cornstarch
Pinch red pepper flakes, optional