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hands holding a giant chocolate cookie

Giant Chocolate Sandwich Cookie

  • Author: Sara Wells
  • Prep Time: 5
  • Cook Time: 15
  • Total Time: 60
  • Yield: 1 giant cookie


This giant sandwich cookie is reminiscent of a soft homemade Oreo. Big enough to make you swoon!


15.2 oz  box devil’s food cake mix (I like Duncan Hines)
1/2 cup real butter, softened (butter flavored shortening or oil also works)

2 eggs

Buttercream Frosting
1/2 cup real butter
2 cups powdered sugar
1 teaspoon vanilla
generous pinch salt
1 or more tablespoons milk, or enough to reach desired consistency

Cream Cheese Frosting
3 oz cream cheese
2 tablespoons butter
2 cups powdered sugar
one pinch salt
1 or more tablespoons milk, or enough to reach desired consistency


Preheat oven to 350 degrees.  Tip: After your oven signals it’s pre-heated, wait an extra 10-15 minutes if possible before placing food in.

Combine butter and eggs with dry cake mix (ignore all instructions on box) with a hand mixer or stand mixer until a cohesive dough forms. *Butter should be very soft, it’s even okay if you soften in the microwave and it’s just a bit melted.

Divide dough into equal parts- I recommend a food scale to accurately divide.

Form each portion of dough into a round ball.  Print off my template guide and place it on a baking sheet.  Place a sheet of parchment paper over the template guide.  Pat dough evenly into circle shape following the guide for a 6″ circle. *You are making 2 cookies. If you have a jumbo baking sheet you might be able to fit them both on, otherwise, use 2 separate cookie sheets or bake one and then bake the other. 

Bake each cookie for 12-15 minutes.  You’ll be looking for cracking on the edges and moving into the center of the cookie. This is a good signal the cookie is ready.  Remove pan from oven and let cool on the counter until cool enough to touch.  Slide parchment onto a cooling rack. Wait until cookie is completely cool before filling.

To prepare filling, choose buttercream or cream cheese icing and beat all ingredients until smooth.  Add milk one teaspoon at a time until frosting is fluffy and soft as desired.