These Monster Cookie Chewy bars are packed with peanut butter, oats, chocolate chips, and colorful candy-coated chocolates, creating a deliciously chewy and satisfying treat perfect for any occasion.
1 cup creamy peanut butter
1 cup packed light brown sugar
1/2 cup granulated sugar
1/2 cup unsalted butter, softened
2 large eggs
1 teaspoon vanilla extract
1 1/2 cups old-fashioned rolled oats
1 cup all-purpose flour
1/2 teaspoon baking soda
1/4 teaspoon salt
1 cup semisweet chocolate chips
1 cup candy-coated chocolate pieces (such as M&M’s)
Preheat the oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
In a large mixing bowl, beat together the peanut butter, light brown sugar, granulated sugar, and softened butter until creamy and well combined.
Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.
In a separate bowl, whisk together the rolled oats, all-purpose flour, baking soda, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Fold in the semisweet chocolate chips and candy-coated chocolate pieces until evenly distributed.
Spread the cookie dough evenly into the prepared baking pan, pressing it down gently to create an even layer.
Bake for 18 to 20 minutes, or until the edges are golden and a toothpick inserted into the center comes out with a few moist crumbs.
Remove from the oven and allow the bars to cool completely in the pan on a wire rack.
Once cooled, use the parchment paper overhang to lift the bars out of the pan and cut into 24 squares.