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White Sheet Cake Cookies Recipe with a Cake Mix featured by top US cookie blogger, Practically Homemade.

White Sheet Cake Cookies

Delicious white sheet cake is transformed in a soft and delicious bite sized cookie that is made with a cake mix.

Course Dessert
Keyword sheet cake cookies
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes



  • 1-15.25 oz. white cake mix
  • 1/3 cup vegetable oil
  • 1 egg
  • 2 tbsp sour cream


  • 1/2 cup butter
  • 2 tbsp milk
  • 2 1/4 cups powdered sugar
  • 1 1/2 tsp vanilla extract



  1. Preheat oven to 350 degrees.

  2. Combine cookie ingredients in large bowl and mix until completely incorporated.  NOTE:  Dough will be thick.

  3. Using a medium sized cookie scoop {or heaping tablespoon}, scoop cookies onto a parchment lined cookie sheet.

  4. Bake for 9-11 minutes, remove from oven and let cool on cookie sheet for 4-5 minutes before moving them to a cooling rack.  Repeat until all of the dough is baked.


  1. Combine the first 2 frosting ingredients in a small saucepan over medium heat and whisk until the mixture has melted.  Remove from heat, add powdered sugar and vanilla, whisk until smooth.

  2. Pour or spoon frosting over cookies.  Use a knife or spoon to move frosting and make sure that each cookie is covered.

  3. Let frosting set and serve.  Keep your White Sheet Cake Cookies in an air tight container at room temperature for up to 3 days.