Butter Rum Cupcakes - Cupcake Fanatic

Ingredients

• 1 cup pecans, chopped
• 1⁄2 cup coconut flakes
• 1(18 1/2 ounce) box butter recipe cake mix (or yellow if you cant find it)
• 1 3⁄4 ounces vanilla instant pudding mix (about half a standard packet)
• 4 eggs, room temperature
• 1⁄2 cup whole milk, cold
• 1⁄2cup vegetable oil
• 1⁄2 cup dark rum
• 1⁄2 cup unsalted butter
• 1 cup sugar
• 16 ounces confectioners’ sugar
• 1⁄2 cup butter, softened
• 1 1⁄2 teaspoons vanilla extract
• 4 tablespoons dark rum, plus up to 2 tablespoons more, as needed