These fudgy chocolate chunk brownies are dense, glossy, and packed with pockets of melted chocolate. Half the chocolate melts into the batter for a deep, rich base, and the other half is chopped and folded in at the end so it stays in chunks that are still soft when the brownies come out.
You need one bowl, one microwave-safe dish, and an 8-inch pan. The batter comes together in about 15 minutes, and the brownies bake in 20 to 25 minutes depending on how fudgy you like them. They are a good everyday recipe when you want real chocolate flavor without a long ingredient list. If you want a faster boxed-mix version, my air fryer boxed brownies are a quick alternative.
Table of Contents
Why This Works
- Melted butter and sugar. Beating them with the eggs creates the thin, shiny crust on top that fudgy brownies are known for.
- Chocolate and cocoa together. Melted chocolate brings richness and cocoa adds a deeper, slightly bitter edge.
- Less flour. Only three quarters of a cup keeps the crumb dense and moist instead of cakey.
- Chocolate chunks. Folding in chopped chocolate at the end means every bite has a soft pocket.
Ingredients
- 8 oz semi-sweet chocolate, divided (chop half for melting and half into chunks)
- 12 tablespoons (1 1/2 sticks) butter, melted
- 1 1/4 cups granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 3/4 cup all-purpose flour
- 1/4 cup unsweetened cocoa powder
- 1/2 teaspoon salt
How to Make Fudgy Chocolate Chunk Brownies
1. Prep the pan and oven. Heat the oven to 350 degrees F. Line an 8-inch square baking pan with parchment paper, leaving an overhang on two sides to lift the brownies out later.
2. Melt half the chocolate. Chop 4 ounces of the chocolate and melt it in a microwave-safe bowl in 20-second bursts, stirring in between, until smooth. Chop the remaining 4 ounces into chunks and set aside.
3. Mix the wet ingredients. In a large bowl, beat the melted butter and sugar together. Add the eggs and vanilla and beat for about a minute until the mixture looks thick and slightly lighter. Stir in the melted chocolate.
4. Add the dry ingredients. Sift the flour, cocoa powder, and salt over the batter and fold gently until no dry streaks remain. Do not overmix.
5. Add chunks and bake. Fold in the chocolate chunks, scrape the batter into the pan, and smooth the top. Bake for 20 to 25 minutes. For very fudgy brownies, pull them when a toothpick shows moist crumbs; for a firmer set, bake closer to 25.
6. Cool fully. Let the brownies cool completely in the pan before lifting them out and cutting into 16 squares. A short chill in the refrigerator makes cleaner cuts.
How to Serve
Serve the squares at room temperature, dusted with powdered sugar, or warm with vanilla ice cream and a drizzle of chocolate sauce. For a more decadent plate, serve alongside the caramel fudge brownies. A pot of coffee and a few squares also make a simple dessert for company. For a simpler chocolate treat, the easy chocolate brownies are a good partner, and the gooey brownie pie is a good fit if you like a warm, spoonable version.
How to Store and Reheat
Store the brownies in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week. You can freeze them for up to three months; wrap well and thaw at room temperature.
To serve warm, microwave a square for a few seconds. As for the batter itself, Ohio State University Extension advises against eating raw dough or batter, so save the tasting for after baking.
Tips and Variations
- Use good chocolate. It is the main flavor, so buy a bar you would enjoy eating.
- Line the pan. Parchment makes lifting and cutting far easier.
- Do not overbake. The edges continue cooking in the hot pan, so pull the brownies while the center is still just set.
- Add nuts. A half cup of chopped walnuts or pecans fits well.
- Try flaky salt. A pinch on top right after baking sharpens the chocolate flavor.
- Use a mixer. An electric hand mixer helps the batter turn thick and glossy.
FAQ
How do I know when the brownies are done?
The edges look set and a toothpick in the center comes out with moist crumbs, not wet batter. They continue to firm up as they cool.
Why are my brownies cakey?
Too much flour or too much mixing creates a cakey texture. Measure carefully and fold just until combined.
Can I use chocolate chips instead of a bar?
Yes. Chocolate chips hold their shape better than chopped bar chocolate, so you will see more distinct chunks.
Why did my chocolate seize?
Even a drop of water can make melted chocolate stiffen. Use a dry bowl and heat gently in short bursts.
Can I use a 9-inch pan?
Yes, though the brownies will be thinner. Start checking a few minutes early.
Fudgy Chocolate Chunk Brownies
Ingredients
Main Ingredients
- 8 oz semi-sweet chocolate divided; chop half for melting and half into chunks
- 12 tbsp butter 1 1/2 sticks, melted
- 1 ¼ cup granulated sugar
- 2 large eggs
- 2 tsp vanilla extract
- ¾ cup all-purpose flour
- ¼ cup unsweetened cocoa powder
- ½ tsp salt
Instructions
Cooking
- Heat the oven to 350 degrees F and line an 8-inch square pan with parchment, leaving an overhang.
- Chop 4 ounces of the chocolate and melt it in a microwave-safe bowl in 20-second bursts, stirring, until smooth. Chop the other 4 ounces into chunks.
- Beat the melted butter and sugar, then beat in the eggs and vanilla for about a minute until thick. Stir in the melted chocolate.
- Sift the flour, cocoa, and salt over the batter and fold gently until no dry streaks remain.
- Fold in the chocolate chunks, spread the batter in the pan, and bake 20 to 25 minutes, until a toothpick shows moist crumbs.
- Cool completely in the pan, then lift out and cut into 16 squares.
