Monster Cookie Dough Bars are no bake and egg free! Monster cookie dough with peanut butter, quick oats, and mini m&m's topped with milk chocolate ganache.
Line an 8x8 baking dish with tin foil or parchment paper. Doing this will make the bars easier to lift out and cut into squares.
In a mixing bowl, combine butter, brown sugar, and sugar. Beat together with a hand mixer until combined and creamy.
Add the peanut butter and vanilla extract. Beat together until combined.
Add flour, oats, and m&m's and beat on low speed until combined.
Press into prepared pan.
To make the topping: In a microwave safe bowl melt the chocolate and heavy cream for 2 minutes, stirring every 30 seconds. *It may not take the entire 2 minutes until it's melted. That's ok.
Pour the milk chocolate over the cookie dough bars and spread out evenly. Immediately sprinkle with remaining M&M's.
Cover the pan with tin foil and refrigerate for 2 hours. Lift the bars out by the overhang of the foil or parchment paper and cut into squares. Store the bars in the fridge.