My kids call these “everything cookies.” Every time I bake a batch of Gluten-Free Flourless Monster Cookies, little hands appear out of nowhere. I created this recipe on a rainy Tuesday when my pantry looked bare. No flour?
No problem. These Gluten-Free Flourless Monster Cookies became an instant family favorite. They are chewy, chocolatey, and packed with oats and peanut butter.
Honestly, these Gluten-Free Flourless Monster Cookies taste like childhood in every bite. Plus, they come together in one bowl. If you need a simple treat, these Gluten-Free Flourless Monster Cookies deliver every single time.
WHY YOU’LL LOVE THESE GLUTEN-FREE FLOURLESS MONSTER COOKIES
First, these Gluten-Free Flourless Monster Cookies require zero flour. Therefore, they suit gluten-free diets perfectly. Second, you need just one bowl.
Consequently, cleanup stays easy. Third, these flourless monster cookies freeze beautifully. Moreover, kids and adults devour them equally. In short, these gluten-free monster cookies win on taste and convenience.
INGREDIENTS YOU’LL NEED
| Ingredient | Amount |
|---|---|
| Peanut butter | 1 cup |
| Brown sugar | ¾ cup |
| Eggs | 2 large |
| Rolled oats (certified gluten-free) | 2 cups |
| Baking soda | 1 tsp |
| Chocolate chips | ½ cup |
| M&M’s | ½ cup |
| Vanilla extract | 1 tsp |
SUBSTITUTIONS & VARIATIONS
Swap peanut butter for almond butter in these Gluten-Free Flourless Monster Cookies. Add raisins instead of M&M’s. Use dark chocolate for richer flavor.
Try a dash of cinnamon for warmth. These flourless monster cookies adapt easily to your pantry.
STEP-BY-STEP INSTRUCTIONS
- Preheat the oven to 350°F.
- Line two baking sheets.
- Mix peanut butter, sugar, eggs, and vanilla until smooth.
- Stir in oats and baking soda.
- Fold in chocolate chips and M&M’s.
- Scoop dough onto sheets.
- Bake 10–12 minutes. Cool five minutes.
- Enjoy your Gluten-Free Flourless Monster Cookies warm.
PRO TIPS FOR SUCCESS

Use certified gluten-free oats for safe Gluten-Free Flourless Monster Cookies. Chill the dough for 15 minutes. Press extra candies on top before baking.
Do not overbake. These tips keep your flourless monster cookies chewy.
STORAGE & REHEATING TIPS
Store Gluten-Free Flourless Monster Cookies in an airtight container for five days. Freeze baked cookies for three months. Reheat in the microwave for 15 seconds. Warm gluten-free monster cookies taste freshly baked.
WHAT TO SERVE WITH THIS RECIPE
Serve Gluten-Free Flourless Monster Cookies with cold milk. Pair them with vanilla ice cream. Add fresh fruit for balance. These flourless monster cookies shine at parties and picnics.
FAQS
Are Gluten-Free Flourless Monster Cookies healthy?
They offer protein and oats. However, treat them as dessert.
Can I make these flourless monster cookies vegan?
Yes. Use flax eggs and dairy-free chocolate.
Do Gluten-Free Flourless Monster Cookies need flour?
No. Oats and peanut butter bind them perfectly.
NUTRITION INFORMATION (PER SERVING)
| Nutrient | Amount |
|---|---|
| Calories | 180 |
| Protein | 6g |
| Carbs | 20g |
| Fat | 9g |
| Sugar | 12g |

Gluten-Free Flourless Monster Cookies
- Total Time: 25–27 minutes
- Yield: 24 cookies
- Diet: Gluten-Free
Description
Chewy, chocolatey gluten-free flourless monster cookies packed with oats, peanut butter, chocolate chips, and M&M’s. Made in one bowl with no flour, they come together quickly and freeze beautifully.
Ingredients
- Peanut butter: 1 cup
- Brown sugar: ¾ cup
- Eggs: 2 large
- Rolled oats (certified gluten-free): 2 cups
- Baking soda: 1 tsp
- Chocolate chips: ½ cup
- M&M’s: ½ cup
- Vanilla extract: 1 tsp
Instructions
- 1. Preheat the oven to 350°F. Line two baking sheets.
- 2. Mix peanut butter, sugar, eggs, and vanilla until smooth.
- 3. Stir in oats and baking soda.
- 4. Fold in chocolate chips and M&M’s.
- 5. Scoop dough onto sheets.
- 6. Bake 10–12 minutes.
- 7. Cool five minutes.
- 8. Enjoy your Gluten-Free Flourless Monster Cookies warm.
Notes
- Use certified gluten-free oats for safe gluten-free cookies.
- Chill the dough for 15 minutes.
- Press extra candies on top before baking.
- Do not overbake to keep cookies chewy.
- Substitute peanut butter with almond butter, add raisins instead of M&M’s, use dark chocolate, or add a dash of cinnamon.
- Store in an airtight container for five days.
- Freeze baked cookies for three months.
- Reheat in the microwave for 15 seconds.
- Serve with cold milk, vanilla ice cream, or fresh fruit.
- For vegan version, use flax eggs and dairy-free chocolate.
- Sodium, saturated fat, unsaturated fat, trans fat, cholesterol, and fiber values are estimated.
- Prep Time: 15 minutes
- Cook Time: 10–12 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cookie
- Calories: 180
- Sugar: 12g
- Sodium: 95mg
- Fat: 9g
- Saturated Fat: 2.5g
- Unsaturated Fat: 4.5g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 1.5g
- Protein: 6g
- Cholesterol: 18mg
Keywords: gluten-free cookies, flourless monster cookies, peanut butter cookies, oatmeal cookies, easy cookies, one-bowl cookies
