Flourless Monster Cookies Recipe

A hand reaching for a flourless monster cookie from a bowl.

4.69 from 22 votes

Flourless Monster Cookies Recipe

Flourless monster cookies are chewy, dense treats packed with oats, peanut butter, and a mix of chocolate chips, M&Ms, and sometimes nuts or raisins. They are rich in flavor and texture, offering a perfect balance of sweetness and a satisfying crunch without the need for flour.

Course Dessert

Cuisine American

Keyword monster cookies

Prep Time 15

Cook Time 12

Total Time 27

Servings cookies

Calories 263kcal

Author Sue Ringsdorf

Ingredients

wet ingredients:

1/2 cup butter softened to room temperature
1 1/4 cups brown sugar
1 cup white sugar
3 large eggs at room temperature
1 1/2 cups creamy peanut butter
1 teaspoon vanilla

dry ingredients:

2 teaspoons baking soda
4 1/2 cups old fashioned oatmeal - or use quick oats
1 cup chocolate chips
1 cup m&ms

Instructions

Prep. Preheat oven to 350 degrees. Prep baking sheets with parchment paper.
Combine the butter and sugars. In a large standing mixer using a paddle attachment, combine the softened butter and both sugars until creamy.
1/2 cup butter, 1 1/4 cups brown sugar, 1 cup white sugar
Add eggs, peanut butter, and vanilla. Then add the remaining wet ingredients – the eggs, peanut butter, and vanilla – and mix again.
3 large eggs, 1 1/2 cups creamy peanut butter, 1 teaspoon vanilla
Add the dry ingredients. Add the baking soda and oatmeal and mix again.
2 teaspoons baking soda, 4 1/2 cups old fashioned oatmeal
Add chocolate chips and m&ms. Then add the chocolate chips and the m&ms and stir with a spatula to combine.
1 cup chocolate chips, 1 cup m&ms
Form cookie balls. Use a cookie scoop to form approximately 32 cookie balls.
**Here is where you'd chill the cookie balls if you'd like. I don't always chill these and have had success either way.
Bake. Place 6-8 cookie balls (depending on how big they are) on a baking sheet, press down slightly, and bake for 12-14 minutes. Let cookies sit on pan for 5-6 minutes before transferring to a cooling rack.
Cool. Place cookies on cooling racks to cool completely.

Notes

Over-Spreading TIP: If the cookies spread too much, take them out of the oven, fix them with a spoon, and place back in the oven to finish baking.

Storing and Freezing

STORING. Let cookies cool completely and then transfer them into an airtight container. Store on the counter in a cool, dark place for up to 5 days.

FREEZING. Monster cookies are such a great cookie to freeze because they’ll last up to 3 months (or longer)! Let cookies cool completely and then transfer into a freezer-safe gallon-size bag. Freeze for up to 3 months.

Nutrition