Give me ALL the oatmeal in my cookies! I love the added texture it adds. If you’re like me, try these no-bake cookies, our favorite oatmeal fudge bars, or stick with a classic oatmeal cookie recipe.
Monster Cookies
Monster cookies start with a classic cookie recipe but the add-ins are where it’s at! They are loaded with peanut butter, chocolate, and oatmeal resulting in the best chewy texture! Plus, they have chocolate chips AND M&M’s! What’s better than a cookie that has both?! Everyone goes crazy over this recipe and you’ll be asked to make them again and again. My kids love these cookies because I make them nice and BIG…just what a monster cookie should be! Cookies are a staple food at our house and it’s always fun to switch it up! Try some more favorites like these iced oatmeal cookies, these yummy clothespin cookies, or these brookies!
Ingredients to Make Monster Cookies
These cookies use classic ingredients that you probably already have in your pantry! I might need to run to the store and grab some M&M’s but it’s so worth it! Check out the recipe card at the bottom of the post for the exact measurements.
Unsalted Butter: Butter provides richness and a buttery flavor. Granulated Sugar: Adds sweetness to the dough. Light Brown Sugar: Brown sugar adds a warm caramel undertone, enhancing sweetness and creating a chewy texture in the cookies. Creamy Peanut Butter: You will LOVE the added peanut butter flavor in this cookie. Eggs: Use room-temperature eggs. Vanilla Extract: Vanilla is always a must in cookie dough. All-Purpose Flour: Gives structure to the cookies. Old-Fashioned Rolled Oats: Adds the best texture to the cookies. Salt: This enhances all of the flavors in this cookie recipe. Baking Powder and Baking Soda: These help the cookies rise and make them light and soft. Mini M&M Candies: It’s not a monster cookie if it doesn’t have M&M’s!! Mini Semi-Sweet Chocolate Chips: The more chocolate the better if you ask me!
Monster Cookie Recipe
We love baking on the weekends at our house! This is the perfect recipe to let them help you make. They love making monster cookies because the name is fun and there are lots of ingredients they can easily measure by themselves.
More M&M Inspired Desserts
At Room Temperature: Store leftover monster cookies in an airtight container on the counter for up to 5 days. To keep them extra fresh, place a plain slice of sandwich bread in the container! This helps the cookies maintain moisture over time. In the Freezer: Freeze leftover cookies after they’re baked and cooled. Place them in a freezer-safe container and freeze for up to 3 months. You can also freeze the cookie dough after scooping it into balls. When ready to bake, place the frozen cookie dough on a baking sheet and add 2-4 minutes to the baking time.
Chocolate Chips and M&M’s: I used mini chocolate chips and mini M&M’s, but you may use the regular size of either or both of them! You may also swap one out for the other, or use milk chocolate chips instead of semi-sweet. Chunky Peanut Butter: For added crunch, use chunky peanut butter instead of smooth. Oats: You can use quick oats instead of old-fashioned, but they will make the cookie a little cakier instead of chewier as they tend to absorb more moisture. Add Coconut: If you love coconut, then add shredded coconut! Replace 1/3 cup of the chocolate chips or M&M’s with shredded coconut. DO NOT OVER-BAKE: Don’t over-bake the cookies! If the edges have turned a deep golden brown, they have baked too long. These cookies need to be just barely set around the edges when they come out of the oven. The center will look under-baked, but they will continue to cook as they cool on the baking sheet.
M&M Cookie Bars
55 mins
M&M Cookies
18 mins
Monster Cookie Dough Cupcakes
30 mins
Brown Butter M&M Cookies
45 mins