One-Bowl Chocolate Monster Cookies

By AislePrompt Editorial · Published 2026-05-06 · Updated 2026-05-06

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are drafted and published.

Thick, chewy chocolate chip cookies packed with peanut butter and oats, ready in under an hour. This recipe, ready in about 27 minutes, layers unsalted butter, brown sugar, peanut butter 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 140 calories and feeds 18, 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.

Prep: 15 min Cook: 12 min Serves 18 Desserts cuisine 140 cal/serving

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Ingredients

1/2 cup unsalted butter
3/4 cup brown sugar
1/2 cup peanut butter
1 large egg
1 cup rolled oats
3/4 cup all-purpose flour
1/2 tsp baking soda
1 cup chocolate chips

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Instructions

Step 1: Preheat oven to 350°F and line a baking sheet with parchment paper.
Step 2: In a large mixing bowl, cream together 1/2 cup unsalted butter, 3/4 cup brown sugar, and 1/2 cup peanut butter using a hand mixer for 2-3 minutes until light and fluffy.
Step 3: Beat in 1 large egg until fully incorporated.
Step 4: Add 1 cup rolled oats, 3/4 cup all-purpose flour, and 1/2 tsp baking soda, stirring gently just until combined.
Step 5: Fold in 1 cup chocolate chips evenly.
Step 6: Drop rounded tablespoon-sized dough balls onto the prepared baking sheet, spacing them 2 inches apart.
Step 7: Bake for 10-12 minutes, until edges are set but centers remain soft.
Step 8: Cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.