Watergate Cake with Cover-Up Frosting

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This Watergate cake is a nostalgic pistachio dessert that’s super easy, seriously delicious, and pretty much guaranteed to spark conversation.

slices of watergate cake on platter

As a lifelong Washingtonian born in 1973—the same year the Watergate hearings were in full swing—and the daughter of a lobbyist and an activist, I couldn’t resist baking and sharing the cake that had everyone talking in the ’70s.

The Watergate cake is a retro pistachio dessert that rose to fame during that era (along with the equally green, pistachio-packed Watergate Salad). Made with pistachio pudding and white cake mix, it was said to be “so good it’s scandalous.” The name was a cheeky nod to the headlines of the day—and, fittingly, the cake is full of nuts and “covered up” with frosting.

Fifty years later, the cake is just as delicious. This slightly updated version has all the charm and flavor (and that unmistakable pale-green color!) of the original, but swaps the Cool Whip for a light, fresh whipped cream frosting. Despite the non-cheffy ingredients, it’s a total crowd-pleaser: super easy, nostalgic, and sure to be a “talker” at any gathering.

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Watergate Cake with Coverup Frosting

slices of watergate cake on platter
This Watergate cake is scandalously good—and sure to get people talking!
Servings: 15
Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes

Ingredients 

  • 1 (14.25-oz.) box white cake mix, such as Betty Crocker
  • 1 cup club soda
  • ½ cup vegetable oil
  • 3 large eggs
  • 2 (3.4-oz.) packages pistachio instant pudding and pie filling mix (preferably Jell-O brand), divided
  • Salt
  • ¾ cup sweetened flaked coconut, divided
  • ¾ cup finely chopped (unsalted) pistachios, divided
  • 2 cups heavy whipping cream
  • ¾ cup confectioners’ sugar
  • 1 teaspoon vanilla extract

Instructions

  • Preheat the oven to 350°F (175°C) and set an oven rack in the middle position. Spray a 9 x 13-in (23 x 33-cm) cake pan with cooking spray.
  • In the bowl of an electric mixer fitted with the paddle attachment (or beaters), combine the cake mix, club soda, oil, eggs, 1 package of the pudding mix, and a heaping ¼ teaspoon salt. Mix on medium speed until light and evenly combined, scraping down the bowl as needed, about 2 minutes. Add ½ cup (30 g) of the coconut and ½ cup (60 g) of the pistachios and mix to combine.
  • Pour the batter into the prepared pan and spread into an even layer.
  • Bake until the top is lightly golden and a cake tester or toothpick inserted in the center comes out clean, 25 to 30 minutes. Let cool completely in the pan on a wire rack, about 2 hours.
  • Make the frosting: In the bowl of an electric mixer fitted with the whisk (or beaters), beat the cream on medium speed until just starting to thicken, about 2 minutes. Add the powdered sugar, 3 tablespoons of the second box of pudding mix (reserve the remaining pudding mix for another cake or discard), the vanilla, and a pinch of salt. Beat on medium speed until thickened and smooth, about 1 minute.
  • Spoon the frosting onto the cooled cake, then use an offset spatula to spread and swirl it decoratively. Sprinkle the cake with the remaining coconut and pistachios.

Notes

Make-Ahead/Freezing Instructions: Once frosted, the cake keeps well in the refrigerator for up to 3 days—just cover the pan tightly so the whipped-cream frosting stays fresh. If you’d like to prep ahead even further, you can bake the cake itself (without the frosting), cool it completely, and freeze it for up to 3 months. Wrap it well in plastic wrap and then foil. When you’re ready to serve, thaw the cake overnight in the refrigerator, make the frosting fresh, and decorate as directed. I don’t recommend freezing the frosted cake, as the whipped-cream frosting can lose its texture once thawed.

Nutrition Information

Per serving (15 servings)Calories: 411kcalCarbohydrates: 35gProtein: 6gFat: 28gSaturated Fat: 10gCholesterol: 73mgSodium: 249mgFiber: 2gSugar: 9g

This website is written and produced for informational purposes only. I am not a certified nutritionist and the nutritional data on this site has not been evaluated or approved by a nutritionist or the Food and Drug Administration. Nutritional information is offered as a courtesy and should not be construed as a guarantee. The data is calculated through an online nutritional calculator, Edamam.com. Although I do my best to provide accurate nutritional information, these figures should be considered estimates only. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Furthermore, different online calculators provide different results depending on their own nutrition fact sources and algorithms. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator.

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