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preview for Margarita Cake

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The tequila frosting is AMAZING. You’ll want to eat it straight from the bowl by the spoonful.

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For the cake

  • Nonstick cooking spray

  • 1

    box white cake mix

  • 1 c.


  • 1/3 c.

    Duke’s Mayonnaise

  • 3

    egg whites

  • Zest of 1 lime

For the tequila frosting

  • 1 c.

    (2 sticks) butter, softened

  • 4 c.

    powdered sugar

  • 1/4 c.


  • 3 tbsp.

    fresh lime juice

  • Zest of 1 lime

  • 1

    lime, halved and very thinly sliced, for garnish

  • 1/2 tsp.



    1. Step 1Make cake: Preheat oven to 350° and line a 9”-x-13” metal pan with parchment paper leaving at least a two-inch overhang on the two long sides. Grease with cooking spray. In a large bowl, combine the cake mix, water, Duke’s Mayonnaise, egg whites, and lime zest and blend on medium-high until smooth, about 2 minutes. Pour into the prepared pan and bake, rotating the pan halfway through, until a toothpick inserted into the middle comes out clean, about 28 minutes. Let cool completely.
    2. Step 2Meanwhile, make frosting: In another large bowl, using a hand mixer, beat butter with half the powdered sugar until smooth. Add remaining powdered sugar, tequila, lime juice, and 1/2  teaspoon of salt, and beat until fluffy.
    3. Step 3Assemble the cake: Using the parchment overhang, remove cake from pan and place on a platter. Spread frosting evenly over the top. Top with lime slices and lime zest and serve.

Don’t have parchment paper or a metal pan? For step 1, use a 9”-x-13” glass pan and cooking spray.

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