Pantry Chocolate Oatmeal Cookie Bars

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A simple, chewy chocolate oatmeal bar made with pantry staples, perfect for a quick sweet snack without any fancy ingredients. This American-inspired recipe, ready in about 37 minutes, layers old-fashioned rolled oats, all-purpose flour, unsweetened cocoa powder 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 190 calories and feeds 12, 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: 22 min Serves 12 American cuisine 190 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F and grease an 8x8-inch baking pan with butter or nonstick spray.
  2. Step 2: In a large bowl, whisk together 1 1/2 cups old-fashioned rolled oats, 3/4 cup all-purpose flour, 1/4 cup unsweetened cocoa powder, 1/2 tsp baking soda, and 1/4 tsp salt until evenly combined.
  3. Step 3: In a separate medium bowl, mix 1/2 cup melted unsalted butter, 3/4 cup packed brown sugar, and 1/4 cup granulated sugar until smooth.
  4. Step 4: Beat in 1 large egg and 1 tsp vanilla extract into the butter-sugar mixture until fully incorporated.
  5. Step 5: Pour the wet ingredients into the dry ingredients and stir until just combined, then fold in 3/4 cup semi-sweet chocolate chips.
  6. Step 6: Spread the batter evenly into the prepared pan and bake for 20-22 minutes until the edges are set but the center remains slightly soft.
  7. Step 7: Let cool completely before cutting into bars to ensure clean slices.

Frequently asked questions

How long does Pantry Chocolate Oatmeal Cookie Bars take to make?

Total time is about 37 minutes (15 min prep + 22 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Pantry Chocolate Oatmeal Cookie Bars?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Pantry Chocolate Oatmeal Cookie Bars?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Pantry Chocolate Oatmeal Cookie Bars for a different number of people?

The recipe is written for 12 servings. Multiply each ingredient by (your serving target / 12). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Pantry Chocolate Oatmeal Cookie Bars?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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