M&M Cookie Bar

M&M Cookie Bar Serves 24 2 1/4 cup flour 1 tsp salt 1/2 tsp baking soda 12 tbsp butter, melted & cooled to room temperature 1 cup brown sugar 1/2 cup sugar 2 eggs 2 tsp vanilla 1 1/4 cup M&M candies, divided 3/4 cup chocolate chips, divided 3/4 cup peanut butter chips, divided 2 tsp sea salt (optional) Preheat oven to 350 Line a 9x13 pan with parchment paper or spray with nonstick spray, set aside In a bowl whisk together flour, salt & baking soda In the bowl of stand mixer, or a large bowl, cream together butter, brown sugar & white sugar until fluffy Add in one egg at a time until fully incorporated Mix in vanilla, until well combined Slowly mix in flour mixture until just combined Mix in 1 cup M&M candies, 1/2 cup of chocolate chips and 1/2 cup peanut butter chips until just combined Press batter into prepared pan until evenly distributed Sprinkle remaining M&M's, chocolate chips and peanut butter chips, gently pressing them into the batter Sprinkle sea salt, if using, over batter Bake for 25-30 minutes, or until golden brown Remove and let cool for 20 minutes in pan and then cool completely on cooling rack Cut into bars