30-Minute One-Bowl Fudgy Brownies

These 30-minute one-bowl fudgy brownies are dangerously easy: one bowl, pantry staples, and 30 minutes stand between you and crackly-topped, gooey-centered chocolate perfection. No mixer, no fuss, no box mix needed ever again. More chocolate bakes? Our Mummy Brownies are a festive twist.

Fudgy one-bowl brownies with a crackly shiny top, a stack of thick chocolate brownies with one broken showing the gooey interior
Prep time10 min
Cook time30 min
Total40 min
Yield16 brownies
CuisineAmerican
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🪵Ingredients

  • 3/4 cup (1 1/2 sticks) unsalted butter
  • 6 oz semi-sweet chocolate, chopped
  • 1 1/4 cups granulated sugar
  • 3 large eggs, room temperature
  • 2 tsp vanilla extract
  • 3/4 cup all-purpose flour
  • 1/4 cup cocoa powder
  • 1 tsp salt
  • 1 cup chocolate chips or chunks (optional)

👩‍🍳Instructions

  1. Melt. Melt the butter and chopped chocolate together until smooth. Cool 5 minutes so it doesn’t scramble the eggs.
  2. Whisk. Whisk in the sugar, then the eggs one at a time, then vanilla — whisk vigorously 1 full minute for that crackly top.
  3. Fold. Fold in the flour, cocoa, and salt just until no streaks remain. Fold in the chips if using.
  4. Bake. Spread in a parchment-lined 8x8-inch pan. Bake at 350°F (175°C) for 28–32 minutes, until the edges are set and the center still looks slightly underdone.
  5. Cool. Cool completely in the pan (at least 1 hour) for clean cuts and maximum fudginess. Yes, the wait is hard.

💡 Brownie smarts

That 1-minute vigorous whisk after adding the eggs is what creates the crackly top — it dissolves the sugar into a meringue-like crust. Pull them when the center still looks slightly underdone; they set as they cool. Cooling completely before cutting is the difference between clean squares and chocolate mush.

Common questions

Fudgy vs. cakey — which are these?

Decidedly fudgy: high fat-to-flour ratio, no leavening. For cakey, add 1/2 tsp baking powder and an extra 1/4 cup flour.

Can I add nuts?

Yes — 1 cup toasted walnuts or pecans folded in with the chips is classic.

Why did mine sink in the middle?

Usually underbaking or opening the oven door early. Bake until the edges are fully set and only the very center jiggles slightly.

Can I double the recipe?

Yes — bake in a 9x13-inch pan for 32–36 minutes.

Thick fudgy brownie with crackly top close-up
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