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The Ultimate Fudgy Chewy Brownies: A Science-Backed Homemade Recipe

A close-up of a square-cut, dense, and rich Fudgy Chewy Brownies with a crackled top.

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A science-backed, reliable homemade recipe to achieve the perfect dense, rich, and fudgy chewy brownies with a signature crackled top. This method ensures maximum chewiness by optimizing fat and egg ratios.

Ingredients

Scale

1 cup (2 sticks) Unsalted Butter

4 oz. Semi-Sweet Chocolate, chopped

1/2 cup Unsweetened Cocoa Powder

1 1/2 cups Granulated Sugar

2 Large Eggs + 1 extra yolk

1 teaspoon Vanilla Extract

3/4 cup All-Purpose Flour

1/2 teaspoon Salt

Instructions

1. Preheat oven to 350°F (175°C). Line an 8×8 inch pan with parchment paper.

2. Melt butter in a saucepan, remove from heat, and stir in chopped chocolate until smooth. Whisk in cocoa powder.

3. In a separate large bowl, vigorously whisk granulated sugar, eggs, and extra yolk for 3-5 minutes until lightened and thickened.

4. Pour in the cooled chocolate-butter mixture and stir gently until just combined.

5. Gently sprinkle the flour and salt over the mixture. Fold the flour into the batter using a rubber spatula until the last streaks of flour disappear. Do not overmix.

6. Pour batter into the prepared pan and spread evenly.

7. Bake for 30–35 minutes, checking for moist, sticky crumbs on a toothpick inserted in the center.

8. Cool completely in the pan for at least 2 hours before slicing to set the fudgy chewy texture.

Notes

Cooling completely is mandatory for the best fudgy texture. If you cut them warm, they will crumble.

Use high-quality chocolate for the deepest flavor.

Store uncut brownies in an airtight container at room temperature for up to 4 days.

Nutrition