These M&M Marshmallow Sugar Cookie Bars are a sweet and colorful dessert made with a chewy sugar cookie base, creamy marshmallow topping, and topped off with M&Ms and sprinkles.

You'll only need a few simple ingredients to make this easy recipe. Let's get started!

Step 1. Whisk together the flour, baking powder, and salt.

Step 2. Beat together the butter, sugar, and brown sugar until fluffy and light.

Step 3. Add the eggs and egg yolk one at a time, mixing well after adding each. Then, mix in the vanilla.

Step 4. Mix the flour and butter mixture until combined, then set aside a cup of dough for the topping.

Step 5. Spread the remaining dough evenly in the prepared pan.

Step 6. Dot the top with about half of the M&Ms, pressing them gently into the dough.

Step 7. Dollop the marshmallow creme over the top.

Step 8. Next, drop bits of the reserved dough over the bars.

Step 9. Place the pan in the heated oven, and bake for 25 to 30 minutes until golden brown.

Step 10. After the bars have cooled, place the remaining M&Ms on top and scatter sprinkles over the top.

Step 11. Use the lining to remove them from the pan, place onto a cutting board, and cut into bars.

Grab a M&M Marshmallow Sugar Cookie Bar and dig in!

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