We like our cookies to be thick and chewy and these do not disappoint! Loads of peanut butter, oats, and candy make these the best monster cookies out there.
Preheat oven to 350 degrees and line a cookie sheet with parchment paper.
In the bowl of a stand mixer, cream together the butter, peanut butter, and sugars until light and fluffy. Beat in the egg and vanilla.
In a medium bowl, combine the flour, oats, baking soda, and salt. Gradually add to the creamed mixture and beat until well combined.
Stir in the m&m candies and chocolate chips.
Drop spoonfuls of dough onto baking sheet 2 inches apart and flatten slightly with the back of a spoon. Bake for 8 minutes exactly.
Let the cookies set on the baking sheet for 5 minutes to set up before transferring to a wire cooling rack.
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Notes
Use a creamy, no-stir peanut butter such as Jif or Skippy for best results.Do not overbake these cookies. They should come out of the oven still soft and will finish setting up as they cool.