Melt butter in a heavy saucepan over medium heat. Stir in sugar, whipping cream, cocoa, 2 tablespoons rum and salt. Bring to a boil; reduce heat, and cook 5 minutes, stirring occasionally. Remove from heat, and stir in coffee granules and vanilla.
Ingredients
3/4 Cup Unsalted butter
1 1/3 Cup Sugar
1 1/3 Cup Whipping cream
1/2 Cup Cocoa
3 Tablespoon Dark rum , divided
1/4 Teaspoon Salt
1 Tablespoon + 1 t instant coffee
1 Teaspoon Vanilla extract