Dark & Stormy Cupcakes

Ingredients

• Cupcakes
• 1 cup flour
• 1/4 cup sugar
• 2/3 cup ginger beer
• 1/4 cup butter, at room temperature
• 2 tablespoons dark rum or 2 teaspoons rum flavoring
• 1 egg, at room temperature
• 2 teaspoons mccormick ground roasted ginger
• 1 teaspoon baking powder
• 1/4 teaspoon salt
• Frosting
• 1 cup sugar
• 1/4 cup dark rum
• 2 egg whites
• 3 inches knob ginger, sliced
• 1 pinch salt