Preheat oven to 350 °F. Line baking sheet(s) with parchment paper and set aside.
In a small bowl whisk together the old fashioned oats, all-purpose flour, black cocoa powder, baking soda, baking powder, and salt. Set aside.
In a large bowl add the softened to room temperature unsalted butter, peanut butter, granulated sugar, and brown sugar. Cream together 3 to 4 minutes until it has lightened in color and is fluffy.
Add the egg and vanilla extract. Combine until incorporated, about 1 minute.
Add the dry ingredients. Combine until incorporated and absorbed.
Add the mini semi-sweet chocolate chips and Halloween M&M's, fold by hand until they are dispersed throughout the cookie dough.
Scoop and pile portions of cookie dough onto the baking sheet leaving 2 inches of space between each. Add additional Halloween M&M's if desired.NOTE: Make sure the cookie dough is piled about 2 inches high. This is what makes them thick.
Bake for 10 to 12 minutes or until the edges are set.
Remove cookies from the oven and immediately add the candy eyes. Allow them to cool for 10 minutes on the baking sheet before placing them on a wire rack to cool completely.
RECIPE NOTES
STORING INFORMATION
Room temperature, in an airtight container or re-sealable gallon bag, for up to 5 days.
Room temperature, in an airtight container or re-sealable gallon bag, for up to 7 days.
Frozen, in a freezer safe re-sealable bag, for up to 3 months.
FREEZE & BAKE LATER INFORMATION
Follow the directions for mixing up the cookie dough, but freeze single portions of cookie dough in a freezer bag for up to 3 months. When you’re ready to bake them, pop them onto a parchment lined baking sheet and bake for 12 to 15 minutes.
Metric conversions are calculated automatically. I cannot guarantee the accuracy of this information.
Did you try this recipe?Please take a minute to leave a rating and comment below. My community of readers appreciate it and I do too!