Half-Baked Chocolate and Walnut Brownie Bars
Fudgy half-baked brownie bars studded with crunchy walnuts, perfect for a gooey dessert that balances rich chocolate with nutty texture. This American-inspired recipe, ready in about 35 minutes, layers unsalted butter, semisweet chocolate chips, granulated sugar 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 250 calories and feeds 9, 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
- 1/2 cup (113 g) unsalted butter
- 1 cup (170 g) semisweet chocolate chips
- 1 cup (200 g) granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- 3/4 cup (90 g) all-purpose flour
- 1/4 cup (25 g) unsweetened cocoa powder
- 1/4 tsp salt
- 1/2 cup (60 g) chopped walnuts
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Equipment for this recipe
Top-rated tools to make this recipe successfully.
Instructions
- Step 1: Preheat oven to 325°F. In a heatproof bowl over simmering water, melt 1/2 cup unsalted butter and 1 cup semisweet chocolate chips together, stirring until smooth and glossy.
- Step 2: Remove from heat and whisk in 1 cup granulated sugar until combined. Let cool slightly, then whisk in 2 large eggs and 1 tsp vanilla extract until smooth.
- Step 3: Sift together 3/4 cup all-purpose flour, 1/4 cup unsweetened cocoa powder, and 1/4 tsp salt. Fold dry ingredients gently into chocolate mixture until just combined.
- Step 4: Stir in 1/2 cup chopped walnuts evenly.
- Step 5: Pour batter into a greased 8x8-inch baking pan and bake for 20 minutes, until edges are set but center is still slightly soft and jiggles when shaken.
- Step 6: Remove from oven and cool completely before cutting into bars for a half-baked fudgy texture.
Frequently asked questions
How long does Half-Baked Chocolate and Walnut Brownie Bars take to make?
Total time is about 35 minutes (15 min prep + 20 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 Half-Baked Chocolate and Walnut Brownie 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 Half-Baked Chocolate and Walnut Brownie 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 Half-Baked Chocolate and Walnut Brownie Bars for a different number of people?
The recipe is written for 9 servings. Multiply each ingredient by (your serving target / 9). 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 Half-Baked Chocolate and Walnut Brownie 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.
