1 lemon cake mix
1 cup frozen lemonade concentrate, thawed
1 cup powdered sugar
1 container lemon frosting
Heat oven to 350 degrees.
Prepare and bake cake as directed on package in a greased 9x13 inch pan. Cool 15 minutes.
Stir together lemonade concentrate and powdered sugar. Poke holes in warm cake with fork. Drizzle lemonade mixture evenly over cake. Refrigerate cake until cold.
Spread frosting over cold cake. Cover and refrigerate leftover cake.