Step 1

Preheat oven to 350¨F. Grease a 13x9 inch baking dish with cooking spray.

Step 2

In a large bowl, combine the white cake mix, 1 package of pudding mix, soda, vegetable oil, and eggs. Beat with a hand mixer on medium speed for 2 minutes. Stir in ½ cup chopped pistachios.

Step 3

Pour into the prepared baking dish. Bake for 30–35 minutes, or until a toothpick inserted into the center comes out clean.

Step 4

Allow the cake to cool completely.

Step 5

Once the cake is cool, place the milk and the remaining package of pudding mix in a large bowl. Whisk until smooth. Let sit for 5 minutes (the pudding will firm up a bit). Then, fold in the whipped topping.

Step 6

Spread the frosting on top of the cake. Sprinkle with chopped pistachios. Refrigerate for at least 30 minutes before serving to allow the frosting to firm up slightly.

Step 7

Cut into slices and serve. Store any remaining cake in the refrigerator.