The secret is store-bought cake mix.

All they require are your favorite cake mix, butter, and eggs.

However, you could make cake mix cookies with any flavor of cake mix in the 15-ounce size range.

Cake Mix Cookies (3 Ingredients) on a cooling rack

Simply Recipes / Sarah Crowder

My mother-in-law loves a version with lemon cake mix that tastes pretty darn close to alemon bar.

Line 2 baking sheets with parchment paper and set aside.

Combine the cake mix, melted butter, and eggs in a large bowl.

Cake Mix Cookies (3 Ingredients) on a cooling rack

Simply Recipes / Sarah Crowder

Use a sturdy spatula to mix until completely smooth.

You should be able to fit about 10 cookies per baking sheet.

Roll each cookie in sprinkles before returning it to the baking sheet, if desired.

Cake Mix Cookies (3 Ingredients) on a dessert plate

Simply Recipes / Sarah Crowder

Transfer the cookies to a wire rack to cool completely.

Leftover cookies can be kept in an airtight container for up to 3 days.

They may become less tender after that point, but are still safe to eat.

There are a few ways to upgrade cake mix cookies, too: