mint chOcOlate chip cupcakes - Sugar Booger Sweets

Ingredients

• 2 oz bittersweet chocolate, chopped
• ¾ cup canola oil
• 1 cup sugar
• 1 large egg, room temperature
• 2 cups all-purpose flour
• ½ cup cocoa powder
• 1 tbsp baking soda
• ¾ tsp salt
• 1 cup strong-brewed coffee
• 1 cup buttermilk, room temperature
• cupcake liners
• 6 large egg whites, room temperature
• 4 sticks unsalted butter, softened but still cool, cut into 1/2 inch pieces
• 1 tsp mint extract
• 3 oz dark chocolate, finely chopped
• green food coloring