Another birthday at work a few weeks ago. Don't let the picture deceive you, this is a good cake. I found the recipe from Better Homes and Gardens.
PINK LEMONADE CAKE
1 cup butter softened
3-1/3 cups all-purpose flour
1 Tablespoon baking powder
1/2 teaspoon salt
2 cups granulated sugar
3-4 drops red food coloring
1-1/3 cups buttermilk
1/4 cup frozen lemonade concentrate, thawed
Preheat oven to 350 degrees. Prepare a 9 x 13 pan with Bakers Joy or Pam. In a bowl combine flour, baking powder and salt. In another bowl, beat butter for 30 seconds. Gradually add sugar, beating until well combined. Scrape down sides and beat for 2 minutes more until will combined. Add food coloring until light pink. Add eggs one at a time. In another bowl stir together buttermilk, lemonade concentrate and vanilla. Mixture will look curdled. Add dry ingredients slowly and combine until well mixed. Pour into prepared pan and bake for 30-35 minutes until center is done.
3 cups powdered sugar
2 Tablespoons butter, softened
1/4 cup lemonade concentrate, thawed
1/2 teaspoon vanilla
4-5 drops red food coloring, or to color desired.
Splash of milk or cream
Combine all ingredients until spreading consistency. Spread over cooled cake.