Key Lime Whoopie Pies

The sweet tartness of key lime is captured in our whoopie pies made with Betty Crocker SuperMoist Yellow cake, graham crackers and key lime pie yogurt.

  • Prep Time 30 min
  • Total Time 1 hr 15 min
  • Servings 18


box Betty Crocker™ SuperMoist™ yellow cake mix
cup water
cup vegetable oil
cup graham cracker crumbs


can (14 oz) sweetened condensed milk
tablespoons bottled lime juice
container (8 oz) frozen whipped topping, thawed
container (6 oz) Yoplait® Light Fat Free Key lime pie yogurt
teaspoon green food color

  • 1 Heat oven to 350°F. Lightly spray cookie sheets with cooking spray.
  • 2 In large bowl, beat all cookie ingredients with electric mixer on low speed until moistened. Beat 1 minute on high speed. Using 1-inch scoop or tablespoon, drop dough 2 inches apart onto cookie sheets.
  • 3 Bake 13 to 16 minutes or until set (do not overbake). Cool 2 minutes; remove from cookie sheets to cooling racks. Cool completely, about 15 minutes.
  • 4 In large bowl, beat condensed milk and lime juice with electric mixer on high speed until thick. Fold in whipped topping, yogurt and food color.
  • 5 For each whoopie pie, spread desired amount of filling on bottom of 1 cookie. Top with second cookie, bottom side down; gently press together. Store covered in refrigerator.

Expert Tips

You can make the filling ahead and store it in the refrigerator until you’re ready to assemble the whoopie pies.

Fresh lime juice can be substituted for bottled; you’ll need to juice about 3 medium limes to get 6 tablespoons.