One-Bowl Brownie Cake with Espresso Powder

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A rich and fudgy one-bowl brownie cake enhanced with espresso powder to deepen the chocolate flavor. This american-inspired desserts ready in about 45 minutes layers (2 sticks) unsalted butter, granulated sugar, packed brown 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 220 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.

Prep: 10 min Cook: 35 min Serves 16 American cuisine 220 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 350°F (175°C). Grease and line an 8x8-inch baking pan with parchment paper.
  2. Step 2: In a medium microwave-safe bowl, melt 1 cup (2 sticks) unsalted butter until fully melted, about 1 minute.
  3. Step 3: Stir in 1 1/4 cups granulated sugar, 3/4 cup packed brown sugar, 3/4 cup unsweetened cocoa powder, and 1 teaspoon espresso powder until smooth and combined.
  4. Step 4: Add 3 large eggs one at a time, stirring well after each addition, then mix in 2 teaspoons vanilla extract.
  5. Step 5: Stir in 1 cup all-purpose flour and 1/4 teaspoon salt just until no streaks of flour remain; do not overmix.
  6. Step 6: Pour the batter into the prepared pan and smooth the top with a spatula.
  7. Step 7: Bake for 30-35 minutes until a toothpick inserted in the center comes out with a few moist crumbs.
  8. Step 8: Cool completely in the pan on a wire rack before slicing into 16 squares.

Equipment for this recipe

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Frequently asked questions

How long does One-Bowl Brownie Cake with Espresso Powder take to make?

Total time is about 45 minutes (10 min prep + 35 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 One-Bowl Brownie Cake with Espresso Powder?

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 One-Bowl Brownie Cake with Espresso Powder?

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 One-Bowl Brownie Cake with Espresso Powder for a different number of people?

The recipe is written for 16 servings. Multiply each ingredient by (your serving target / 16). 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 One-Bowl Brownie Cake with Espresso Powder?

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.