This Loaded M&M Oreo Cookie Bar recipe includes golden and regular Oreos and M&M’s for a total chocolatey treat!
Preheat oven to 350 degrees.
Line a 9×9 baking dish with parchment paper.
.In a standing mixer, combine the melted butter, sugar and light brown sugar and mix until combined.
Add the two eggs, and one egg yolk one at a time. Mixing well after each egg.
Stir in vanilla extract.
Mix together using a whisk, the flour, cornstarch, baking powder, and salt in a second bowl.
Gradually add dry ingredients into wet ingredients. Mix until combined.
Now mix in the chocolate chips, 1/2 C mini M&M’s, 1 C Oreos, and 1 C Golden Oreos.
Pour the cookie batter into the pan and use a rubber spatula to evenly spread the batter.
Sprinkle the remaining mini M&M, 1 C Oreos and 1 C Golden Oreos onto the top of the cookie bar batter.
Bake in your preheated oven for 35-40 minutes or until edges just begin to turn golden brown and a toothpick inserted in the center comes out clean.
Remove from oven slightly cooling before cutting and serving.