Preheat oven to 375°F.

Mix together cake mix, eggs, oil and chocolate chips.

Use a small cookie dough scoop to make uniform balls of dough on a cookie sheet.

Flatten dough balls with the bottom of a glass.

Bake at 375°F for 7-9 minutes.

Once the cookies have cooled, spoon Greek frozen yogurt onto one cookie and add another cookie to the top.

Gently press on the two cookies, squeezing them together to make the sandwich.

Wrap sandwiches in plastic wrap and store in the freezer until ready to serve.