Guinness Beer Cupcakes - Pankobunny

Ingredients

• 1 cup Guinness beer
• 1 cup unsalted butter
• ¾ cup cocoa powder
• 2 cups granulated sugar
• 2/3 cups sour cream
• 2 eggs
• 1 tbsp vanilla extract
• 2 cups all-purpose flour
• 2 ½ tsp baking soda
• 2/3 cup chocolate chips
• 2 cups unsalted butter (softened)
• 1 tsp vanilla extract
• 5-6 tbsp Guinness beer
• 5-6 cups powdered sugar
• chocolate sprinkles