Combine: Place all ingredients into a small saucepan.
Simmer: Whisk the mixture over medium-low heat. Let it come to a very gentle simmer for 3 to 5 minutes. This allows the molasses to integrate and the fruit base to reduce slightly.
Adjust Consistency: * If the sauce is too thin: Mix 1 tsp of cornstarch with 1 tsp of cold water to create a slurry. Stir it into the simmering sauce until it reaches your desired thickness.
If the sauce is too thick: Whisk in a teaspoon of water or beef broth.
Cool: Remove from heat and let the sauce cool completely. It will continue to thicken as it reaches room temperature.