Step 2
Reserve 24 raspberries for garnish; set aside. In small bowl, beat remaining raspberries, 1 cup of the frosting and 2 tablespoons lemon peel with whisk until well blended. Fit 1/4-inch diameter round tip into decorating bag. Spoon raspberry mixture into bag. Insert tip into center of each cupcake, about two-thirds of the way down; gently squeeze bag, pulling upwards until cupcake swells slightly and filling comes to top. (Do not let filling spill out over top of cupcake.)