Gluten-Free Monster Cookie Bars
Chewy, soft monster cookie bars packed with oats, chocolate chips, and colorful candies, made gluten-free and ready in under an hour. This American-inspired recipe (gluten-free), ready in about 43 minutes, layers gluten-free rolled oats, gluten-free all-purpose flour, baking soda into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 210 calories and feeds 16, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 2 cups gluten-free rolled oats
- 1 cup gluten-free all-purpose flour
- 1/2 tsp baking soda
- 1/2 cup, softened unsalted butter
- 1 cup brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- 3/4 cup mini chocolate chips
- 3/4 cup mini rainbow candy-coated chocolates
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Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Preheat oven to 350°F. In a medium bowl, whisk together 2 cups gluten-free rolled oats, 1 cup gluten-free all-purpose flour, and 1/2 tsp baking soda.
- Step 2: In a large bowl, cream 1/2 cup softened unsalted butter with 1 cup brown sugar and 1/2 cup granulated sugar until light and fluffy, about 3 minutes using a hand mixer.
- Step 3: Beat in 2 large eggs one at a time, then add 1 tsp vanilla extract and mix until combined.
- Step 4: Gradually add the dry oat and flour mixture to the wet ingredients, stirring until just incorporated.
- Step 5: Fold in 3/4 cup mini chocolate chips and 3/4 cup mini rainbow candy-coated chocolates evenly.
- Step 6: Press the dough evenly into a greased 9x9 inch baking pan and bake for 25-28 minutes until golden brown on top and a toothpick inserted comes out clean.
- Step 7: Cool completely in the pan before cutting into bars.









