Chocolate Guinness Cupcakes with Baileys Cream Cheese Frosting

INGREDIENTS

1 cup

Guinness beer

1 cup

unsalted butter

3/4 cup

unsweetened cocoa powder

2 cups

granulated sugar

2/3 cup

sour cream

large egg (at room temperature)

2 tbsp

vanilla extract

2 cups

all-purpose flour

and 1/2 tsp baking soda

4 cups

powdered sugar

1/2 cup

unsalted butter (softened)

8 oz

cream cheese (softened)

4 tbsp

Baileys Irish Cream (to taste)