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Dreamy Watergate Cake Recipe

This recipe for Watergate Cake has been enjoyed by my family for years. It’s creamy and luscious thanks to a box of pistachio pudding mix and Dream Whip.

slice of Watergate cake

If you like Watergate Salad, then you’re going to love this cake!  This pistachio sheet cake is topped with a creamy, dreamy frosting and is kept chilled.  Cold cakes are totally delish.

How To Make Watergate Cake

For this pistachio cake recipe, you need the following ingredients:

  • 1 box instant pudding mix, pistachio flavored
  • 1 box white cake mix
  • 1 cup 7-Up
  • 3 egg whites
  • 1 cup oil
  • 1 box instant pudding mix, pistachio flavored
  • 1½ cups milk
  • 2 envelopes of Dream Whip

If you have never worked with Dream Whip, don’t let it intimidate you.  Dream Whip is a commercial powdered mix to make whipped cream.  If you have a mixer, you won’t have any problems with it.

To make Watergate Cake, start by preheating your oven to 350 degrees (Fahrenheit).  While it is warming up, grease and flour a 9×13 cake pan.  Alternatively, you can use Baker’s Joy to prep the pan.  Just spray a light layer over the bottom and inside.

For the cake, blend one box of instant pistachio pudding mix, a box of white cake mix, 7-Up, egg whites, and oil in a mixer for 5 minutes at medium speed.  Pour the cake batter into the prepared cake pan and bake for 30 – 35 minutes or until a toothpick inserted in the middle comes out clean.

Cool the cake completely before making the pistachio whipped topping.

For the topping, beat 1 box of pistachio pudding mix, milk, and the Dream Whip. Beat until it is thick and peaks form.

Spread the topping on top of the cake and place it in the refrigerator.  This cake will need to be kept cold at all times.

If you plan on taking it to a family get together, church potluck, or some other event, pack it in a container and include ice packs.  Remember, the icing is made with a dairy product and needs to be kept cold.

slice of cake
4.52 from 31 votes

Watergate Dream Cake

This recipe for Watergate Cake has been enjoyed by my family for years. It's creamy and luscious and will have you wanting more.
Course Desserts
Cuisine American
Keyword Watergate Cake
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings 1 cake
Calories 245kcal
Author Lynda


  • 1 box instant pudding mix pistachio flavored
  • 1 box white cake mix
  • 1 cup 7-Up
  • 3 egg whites
  • 1 cup oil
  • 1 box instant pudding mix pistachio flavored
  • cups milk
  • 2 envelopes whipped topping Dream Whip


  • Preheat oven to 350 degrees. Grease and flour a 9 x 13 inch cake pan.
  • Blend 1 box of pistachio pudding, cake mix, 7-Up, egg whites and oil in mixer for 5 minutes. Pour into prepared pan.
  • Bake for 30 – 35 minutes. Cool completely.
  • Beat 1 box of pistachio pudding mix, milk and whipped topping. Beat until thick and peaks form. Ice/frost cake. Keep cake chilled.



Serving: 1slice | Calories: 245kcal | Carbohydrates: 12g | Protein: 3g | Fat: 21g | Saturated Fat: 2g | Polyunsaturated Fat: 18g | Cholesterol: 4mg | Sodium: 120mg | Sugar: 5g

Why Is It Called Watergate Cake?

The cake is similar to Watergate Salad which is made with pistachio pudding, canned pineapple, whipped topping, crushed pecans, and marshmallows.

There are two possibilities of how “Watergate” landed in the name that unites both dishes, though no one knows for sure.

The first possibility is that the Watergate Salad recipe was developed by the chef at the Watergate Hotel – yes, that one that made the news thanks to Richard Nixon.

According to Southern Living, the other explanation is that “the cake version has icing to ‘cover up’ any mistakes and, like politics, is chock full of nuts.”

Would you prefer Watergate Cake or Watergate Salad?

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Recipe Rating

Donna L Tidwell

Tuesday 2nd of March 2021

I love watergate cake. It was the first cake I baked as a child. EXCELLENT

Susan Badger

Thursday 3rd of December 2020

My mom made this all all the time when I was growing up. One of my all time favorite desserts.

Jennifer Deitch

Monday 12th of October 2020

Everyone is out of the dream whip. Is there a substitute for dream whip?


Monday 12th of October 2020

I am not sure. I googled it and this is some info that I found:

"Dream whip is a mix to make your own whipped cream - yes you can use it in place of Cool Whip. ... whip cream is natural, dream whip is synthetic, and cool whip is pre-whipped synthetic. If it calls for dream whip, read the recipe to see if it mixes anything other that milk and vanilla into the powder." From

I imagine that you could probably blend the pudding mix with Cool Whip or make whipped cream by beating heavy cream and then add the pudding mixture to the cream.


Saturday 20th of June 2020

Lynda, Thank you for sharing a nice and easy recipe. I opted for lemon pudding, rather than pistachio, in the cake as well as the frosting for a nice summertime dessert. Yummy!


Saturday 20th of June 2020

That sounds delicious! Thanks for sharing.

Donna Brank

Saturday 15th of June 2019

I've made this for years,. It's even better if you add drained crushed pineapple, You can even use the juice in the cake. And since I am diabetic it works just as well with the no sugar pudding.