Rebecca Sauce and Strawberries

Rebecca Sauce is from the Galt House Hotel, Louisville, Kentucky. It is a favorite during Derby Day.

2 cups sour cream
1/2 cup dark brown sugar
1 tablespoon vanilla extract
1 tablespoon dark rum or bourbon
Whole strawberries, with stems on

Combine all ingredients except strawberries, and stir until completely smooth. Chill before serving.