dublin stOut cupcakes - Sugar Booger Sweets

Ingredients

• 2 oz bittersweet chocolate, chopped
• ¾ cup canola oil
• 1 cup granulated sugar
• 1 ½ tsp pure vanilla extract
• 1 large egg, room temperature
• 2 cups all-purpose flour
• ½ cup dark cocoa powder
• 1 tbsp baking soda
• ¾ tsp salt
• 1 cup stout beer, such as Guinness, room temperature
• 1 cup buttermilk, room temperature
• cupcake liners
• 6 large egg whites, room temperature
• 1 cup sugar
• 4 sticks unsalted butter, softened but still cool, cut into 1/2 inch pieces
• 2 oz white chocolate, melted and cooled to room temperature
• 2 tbsp Irish Cream Liqueur
• 3 tbsp caramel sauce
• ½ tsp espresso powder
• 1 ½ tbsp Irish Whiskey