Monster Cookies

Monster Cookies are soft, chewy cookies loaded with peanut butter, oats, M&M candies, and chocolate chips. This easy homemade cookie recipe is perfect for parties, holidays, and after-school snacks. With colorful candies and a rich peanut butter base, these cookies are a family favorite that can be made ahead and frozen for later.

Ingredients

• ½ cup butter, softened (115 g)
• ½ cup granulated sugar (100 g)
• ½ cup light brown sugar (110 g)
• ½ cup peanut butter (130 g)
• 1 large egg
• 1 teaspoon vanilla extract (5 ml)
• 1 cup all-purpose flour (120 g)
• 1 ¼ cups old-fashioned rolled oats (112 g)
• ¼ teaspoon salt (1.5 g)
• ½ teaspoon baking powder (2 g)
• ½ teaspoon baking soda (2.5 g)
• ¾ cup M&M candies (130 g)
• ½ cup semisweet chocolate chips (90 g)

Instructions

1. Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper.
2. In a large mixing bowl, cream together the butter, granulated sugar, and brown sugar for 2–3 minutes until light and fluffy.
3. Add the peanut butter and mix until combined. Beat in the egg and vanilla extract.
4. In a separate bowl, whisk together the flour, oats, salt, baking powder, and baking soda.
5. Gradually add the dry ingredients to the wet mixture and mix just until combined.
6. Stir in the M&M candies and chocolate chips.
7. Scoop dough (about 1 tablespoon per cookie) onto the prepared baking sheet.
8. Bake for 10–12 minutes, or slightly longer if making larger cookies. The cookies should look just set in the center.
9. Remove from the oven and let them cool completely on the pan before transferring to a wire rack.

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Tips

• Use room-temperature butter for best creaming results.
• Don’t over-bake—cookies will firm up as they cool.
• For evenly sized cookies, use a cookie scoop.
• Chill the dough for 20–30 minutes if it feels too soft.

Variations and Substitutions

• Nut-free option: Replace peanut butter with sunflower seed butter or almond butter.
• Candy swap: Use Reese’s Pieces, mini chocolate chips, or chopped candy bars instead of M&M’s.
• Texture twist: Add shredded coconut, chopped nuts, or pretzel pieces for extra crunch.
• Gluten-free: Substitute a gluten-free flour blend and certified GF oats.

FAQs

Why are my cookies dry?
They may have been over-baked or too much flour was added. Be sure to spoon and level the flour correctly.

Can I freeze Monster Cookies?
Yes! Freeze baked cookies for up to 2 months or freeze the dough balls and bake straight from frozen (adding 1–2 minutes to baking time).

Do I need to chill the dough?
Not always, but chilling helps prevent spreading if your kitchen is warm.

Serving Suggestions

• Pair with a glass of cold milk for a classic snack.
• Pack in lunchboxes for a colorful treat.
• Serve on a cookie platter at parties or holiday gatherings.
• Crumble over ice cream for a fun topping.

Why You’ll Love This Recipe

• Chewy, soft, and packed with chocolate and candy.
• Colorful and kid-friendly—perfect for parties or holidays.
• Simple to make with pantry staples.
• Freezer-friendly for make-ahead baking.