I pulled a pan of fudgy chocolate brownies out of the oven on a Tuesday night and my husband walked straight past the stove, stopped, turned around, and said. Did you buy those?’ He was looking at the crinkly, paper-thin top and the way the edges had pulled slightly from the pan. He genuinely thought I had gone to the bakery. That’s the reaction these get. The top crackles. The center is dense and gooey without being raw. The chocolate flavor is deep enough that a single square feels like it’s actually enough which never happens with a boxed mix.One bowl. No mixer. About 10 minutes of real hands-on work. The hardest part is the 2-hour wait after they come out of the oven. Why You’ll Love This Fudgy Brownies Recipe Ingredients for Rich Chocolate Brownies (Benefits) Dry Ingredients Wet Ingredients Mix-In How to Make Fudgy Chocolate Brownies (Step by Step) Preheat the oven and prepare the pan Preheat your oven to 350°F and set the rack to the middle position. Line an 8×8-inch metal baking pan with parchment paper, leaving an overhang on two sides so you can lift the brownies out cleanly. Grease the parchment lightly. I’ve made this in a glass pan and the edges always overcook before the center is done metal conducts heat more evenly here. Melt the butter Melt the butter in a large microwave-safe bowl in 30-second intervals, stirring between each one. You can also do this in a small saucepan over low heat. Let it cool for about 5 minutes before adding the eggs you want it warm, not steaming hot. Hot butter scrambles the eggs. Whisk the sugar into the eggs for the crinkly top In a separate medium bowl, whisk together the eggs, egg yolk, and sugar until the mixture turns pale, thick, and slightly foamy about 2 full minutes of vigorous whisking by hand. This is the step that creates the signature crinkly, shiny top. I rushed this once and the top came out dull and flat. Take the two minutes. Combine the butter mixture with the egg mixture Pour the cooled melted butter and oil into the egg-sugar mixture and whisk together. Stir in the vanilla extract and espresso powder if using. The mixture should look smooth and glossy. Add the dry ingredients Sift in the cocoa powder, then add the flour, baking powder, and salt. Switch to a spatula and fold everything together until just combined stop when no dry streaks remain. The batter will be thick. Overmixing at this stage develops gluten and can turn the crumb slightly tough. A few folds is all it takes. Fold in the chocolate chips Add the chocolate chips and fold them in with a few turns of the spatula. Folding not stirring keeps the batter from becoming overworked. Some chips will sink to the bottom during baking, which means pockets of chocolate in the base layer. That’s not a problem. Pour and bake Pour the batter into the prepared pan and use the spatula to spread it into an even layer. Bake at 350°F for 26–30 minutes start checking at 26 minutes. The edges should look set and the center should have a very slight jiggle when you gently shake the pan. A toothpick inserted 2 inches from the edge should come out with a few moist crumbs attached. If it comes out clean, they’re slightly overbaked. Pull them now. Cool completely before cutting (this part matters) Transfer the pan to a wire rack and let the brownies cool at room temperature for a full 2 hours before lifting them out and cutting. The interior continues to set as they cool. I cut into a batch at 45 minutes once and the center was still molten and the slices fell apart. The cooling time is built into the total time for a reason. Expert Tips for Perfect Fudgy Chocolate Brownies Whisk the eggs and sugar until the mixture turns pale and thick (don’t skip this) After ruining two batches with a flat, dull top, I tracked down the cause: I was mixing the eggs and sugar with just a quick stir instead of whisking properly. The crinkly, shiny top that makes these look bakery-made comes from dissolving the sugar into the eggs over about 2 minutes of real whisking. The mixture should change color from golden-yellow to pale, almost cream-colored and fall from the whisk in a thick ribbon before you stop. Use a metal 8×8-inch pan, not glass. Glass retains heat differently from metal and the edges overcook before the center sets. I’ve tested both. The metal pan gives you evenly baked, fudgy brownies edge to edge. If metal is all you have, that’s the right answer. Don’t overbake. Pull the pan when the center barely jiggles. The most common reason moist chocolate brownies come out dry or cakey is overbaking. At 26 minutes, shake the pan gently. The very center should still have a slight wobble. A toothpick should come out with moist crumbs, not clean. Remember they continue cooking on the hot pan after you pull them from the oven. Let the butter cool before adding the eggs. Hot butter scrambles the eggs and you end up with yellow streaks baked into your brownies. I learned this the messy way. After melting the butter, give it 5 minutes on the counter. It should feel warm to the touch, not steaming hot, before anything else goes in. The extra egg yolk is not a mistake. Two whole eggs give you structure. The extra yolk tips the balance toward rich and fudgy the way bakery style fudgy brownies taste, where the center is almost like a thick ganache. Leaving it out makes a slightly cakier, less dense brownie. Not bad, just different from what this recipe is going for. Add the espresso powder even if you don’t like coffee. Extra fudgy brownies with cocoa powder can sometimes taste a little flat or one-note without something to amplify