https://www.kroger.com/r/basic-chinese-brown-sauce-recipe/173288

1/2 cup beef broth
1 Tbsp. soy sauce
1 Tbsp. oyster sauce
1 Tbsp. Chinese rice wine or dry sherry
1 tsp. granulated sugar
1 tsp. sesame oil
1/4 tsp. ground black pepper
2 tsp. cornstarch