Directions

1. 1

   Preheat your oven to 350°F. Line baking sheets with parchment paper to prevent sticking.

2. 2

   Pour the devil's food cake mix into a large mixing bowl and sift to break up any lumps. Add the two eggs, vegetable oil, and vanilla extract to the bowl.

3. 3

   Stir the mixture until fully combined. The resulting dough will be thick and cake-like in texture.

4. 4

   Shape the dough into balls slightly smaller than golf balls. Place them on the prepared baking sheets, spacing them about 3 inches apart.

5. 5

   Bake for 7 to 9 minutes until the cookies are set but still soft. Remove from the oven and allow them to cool completely on the baking sheets.

6. 6

   While the cookies cool, prepare the filling. Beat the softened butter and cream cheese together in a separate bowl until the mixture is smooth and creamy.

7. 7

   Add the dry yellow cake mix, vanilla extract, and milk to the butter and cream cheese mixture. Beat until well combined.

8. 8

   Gradually add the powdered sugar to the filling while beating, adding a little at a time until you reach your desired consistency. Add more powdered sugar if needed for a thicker filling.

9. 9

   If desired, stir in a few drops of yellow food coloring to give the filling a pale yellow hue.

10. 10

    Frost the bottom surface of half of the cooled cookies with the filling, then press an unfrosted cookie on top of each frosted one, bottom-side down, to create a sandwich.

11. 11

    Pour colorful sprinkles into a shallow bowl. Roll the exposed edges of each sandwich cookie in the sprinkles to decorate.