Quick and Easy M&M Cookie Bars Recipe. Learn how to make these soft and chewy cookie bars full of chocolate chips and M&M’s. A delicious treat to indulge your sweet tooth! Active time: 20mins | Cook time: 30mins | Yield: 16 Ingredients: 2/3 cup (150g) Unsalted Butter (melted) 1/3 cup (67g) Brown Sugar 1 cup … Continue reading Quick and Easy M&M Cookie Bars