Boo! Get ready for Halloween Monster Mash Cookies! These festive treats are the perfect blend of spooky and sweet, making them an easy and fun addition to your Halloween celebrations. Made with homemade chocolate chip cookie dough, these cookies feature hearty oats, crunchy pretzel pieces, and a generous amount of chocolate chunks. Plus, they’re packed with playful Halloween M&M’s and whimsical candy eyes for a ghoulish touch!
You’ll love the delightful contrast of flavors and textures: each cookie is slightly crisp on the edges while remaining soft and gooey in the center, with melted chocolate in every bite. There’s truly nothing not to love about these sweet and salty delights! Get ready to impress your friends and family with this graveyard-inspired treat!
Halloween Monster Mash Cookies
2 sticks (1 cup) unsalted butter, softened
1 & 1/3 cup light brown sugar
2 eggs & 1 yolk
1T Mexican Vanilla
2 cups all purpose flour
2 t baking soda
2 t baking powder
1/2 t kosher salt
2 cups old fashioned oats
1 1/4 cups Halloween M&Ms
1 cup mini pretzels, crushed
1 cup semi-sweet chocolate chips
Candy eyes
Halloween Sprinkles
- Preheat the oven to 350° F. Line baking sheets with parchment paper.
- In a bowl, beat together the butter, brown sugar, and vanilla until combined.
- Beat in the eggs and 1 egg yolk, 1 at a time, until combined. Add the flour, baking soda, baking powder, and salt. Beat in the oats.
- Fold in 1 cup of the M&M’s, the pretzels, and chocolate chips.
- Roll the dough into 1/4 cup size balls. Place 3 inches apart on the prepared baking sheet.
- Bake for 8 minutes. Pull the pan out and push the remaining M&M’s, add candy eyes & Halloween sprinkles into the cookies. Rotate pan. Bake 2-3 minutes. Remove from the oven and let the cookies cool on the baking sheet. They will continue to cook slightly as they sit on the baking sheet.
- Eat warm or let cool and store in an airtight container for 5 days.



















