Fudgy Chocolate Brownie Square

Headnote

This brownie is built for depth rather than sweetness, with a dense, supple crumb and a clean chocolate finish. Butter and chocolate provide richness, while a measured amount of oil preserves the moist, almost truffle-like interior. It should cut with precision and eat as a compact square with a glossy top and a tender center.

Recipe essentials

Dish category: Baked confection

Cuisine or origin: American

Course type: Dessert

Yield: 1 brownie square

Serving size: 70 g

Prep time: 10 minutes

Cook time: 18 minutes

Total time: 28 minutes

Difficulty: Easy

Equipment

Mixing bowl

Small saucepan

Whisk

Rubber spatula

10 cm square baking pan

Parchment paper

Wire rack

Small knife

Ingredients

18 g butter

8 g chocolate, finely chopped

10 g vegetable oil

18 g sugar

10 g egg, lightly beaten

1 g vanilla extract

9 g wheat flour

4 g cocoa powder

2 g sugar

Method

1. Heat the oven to 175°C. Line a 10 cm square baking pan with parchment paper, leaving a slight overhang for lifting.

2. In a small saucepan over low heat, melt the butter and chocolate together with the vegetable oil, stirring just until smooth and glossy. Remove from the heat and let the mixture stand for 2 minutes; it should be warm, not hot.

3. Whisk the 18 g sugar into the chocolate mixture until dissolved and the surface looks slightly satiny. Whisk in the egg and vanilla extract until the batter becomes thicker and cohesive.

4. Sift in the wheat flour and cocoa powder, then fold with a spatula only until no dry streaks remain. The batter should be dense, dark, and evenly emulsified.

5. Scrape the batter into the prepared pan and smooth the surface. Sprinkle the remaining 2 g sugar evenly over the top.

6. Bake for 16 to 18 minutes, until the top is set and lightly crackled, the edges are firm, and the center still yields a faint softness when pressed. Do not overbake; the brownie should remain fudgy in the middle.

7. Cool in the pan for 15 minutes, then lift out and cool on a rack until just warm before cutting into one precise square.

Plating and serving

Place the brownie square slightly off-center on a small plate. Serve it plain, with the crackled top facing upward and the cut sides clean and even. The final texture should be compact at the edges and softly yielding at the center.

Professional notes

Use the chocolate while it is fully melted but not hot, or the egg will tighten and dull the crumb. Folding must stop the moment the batter comes together; overmixing will toughen the square. A short bake is essential for the dense, fudgy finish that defines the style.