I've made these cookies bars so many times I had to check my blog archives to see if I had posted the recipe before. These are soooo good! It's become my favorite recipe to make for crowds. Just grab a bag of M&M's and you should have everything else in your pantry! I first made these around Thanksgiving and used the fall colored M&M's. That's what's nice about M&M recipes you always have a go-to for holidays! I searched all over for a bag of green M&M's for St. Patty's day, but they don't make them. I ended up having to buy the expensive ones from the party store.
Chewy M&M Cookie Bars
Orignal recipe from Fantastic Family Favorites
2 1/8 cups flour
1/2 tsp salt
1/2 tsp baking soda
1 1/2 sticks of butter melted and then cooled slightly (be sure to do this)
1 cup brown sugar
1/2 white sugar
1 large egg
1 large egg yolk
2 tsps vanilla
1 (12oz) bag of M&M's divided
Preheat oven to 325 degrees. Line a 9x13" pan with foil letting the excess hang over the edges, so you can grab the edges and pull the bars from the pan once they have baked. Spray the foil lined pan with non-stick cooking spray.
Melt butter in a medium bowl. In another bowl mix flour, salt, and baking soda. Whisk sugars in butter bowl. Add eggs, vanilla and mix well. Fold in dry ingredients. Do not over mix. Fold in 1 cup of M&M's. Save the rest for later.
Smooth the batter into the pan. Sprinkle remaining M&M's on top and slightly press in with spatula.
Bake for 24-28. (Mine took 35 minutes) The top should be golden brown on top.
Remove the bars from the pan by pulling the foil, cut and serve.