Preheat your oven to 180ºC (350ºF) and line 2 muffin pans with 20 cupcake liners.
In a large mixing bowl, prepare the cake batter according to the package directions.
Pour the batter into prepared cupcake liners.
Place a strawberry into each cupcake liner.
Bake until golden, about 20 minutes.
Let them cool down completely.
Make lemonade frosting, in a large mixing bowl use your hand mixer and beat together the butter and half of the icing sugar until you have a smooth texture.
Beat in the lemonade and the rest of the icing sugar until light and fluffy.
Stir in enough red food coloring to make it pink. (4 drops worked well for us)
Using a star tip pipe the cooled cupcakes with lemonade frosting.
Garnish with a lemon slice, a strawberry slice and decorate straw.