Classic Chocolate Cake

A classic chocolate cake is a tender, deeply flavored cake with rich chocolate taste and a moist crumb. The secret is cocoa powder in the batter and hot water that blooms it, making the chocolate flavor bold without any grittiness.

Ingredients for Classic Chocolate Cake

All-purpose flour gives the cake structure. Cocoa powder and chocolate deliver the flavor, while hot water blooms the cocoa and keeps the crumb moist. Butter and eggs at room temperature mix smoothly into the batter and create a tender texture. Sugar sweetens and helps the cake rise. Baking soda and baking powder leaven it, while salt sharpens the chocolate taste. Vanilla extract deepens the flavor without making it taste like vanilla.

Why This Classic Chocolate Cake Works

Room-temperature butter and eggs combine into a light, airy mixture that traps air bubbles. These bubbles expand in the oven and give the cake a tender crumb instead of a dense one. Cocoa powder stirred into hot water blooms and releases its full flavor, turning the water dark and rich.

The batter is thinner than you might expect because the hot cocoa mixture is poured in last. This thinner batter bakes evenly and rises gently without doming or cracking. The cake stays moist because cocoa powder and chocolate both absorb and hold water, and the batter itself is wetter than a typical butter cake.

Mistakes To Avoid

Measuring flour by scooping the cup straight into the bag packs it down and adds too much flour. The cake becomes dry and tough instead of tender. Always spoon the flour into the cup and level it, or use a kitchen scale.

Using cold butter and eggs prevents them from mixing smoothly, so the batter stays lumpy and the cake bakes unevenly with a dense texture. Let both sit on the counter for 30 minutes before you start.

Overmixing the batter after you add the flour develops gluten and makes the cake tough. Stir just until the flour is no longer visible, then stop. A few small lumps are fine and will bake out.

Pulling the cake from the oven too early leaves the center underbaked and the cake sinks as it cools. Let it cool in the pan for 10 minutes, then turn it out onto a rack. This prevents it from cracking and breaking apart while it is still fragile.

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Ingredients

• 2 cups (250g) all-purpose flour
• 3/4 cup (65g) unsweetened cocoa powder
• 2 teaspoons baking soda
• 1 teaspoon baking powder
• 1 teaspoon salt
• 1 3/4 cups (350g) granulated sugar
• 1/2 cup (115g) unsalted butter, room temperature
• 3 large eggs, room temperature
• 2 ounces chopped unsweetened chocolate
• 1 teaspoon vanilla extract
• 1 cup hot water

Step-by-step Instructions

1. Preheat the oven to 350°F (175°C). Grease two 9-inch round pans and line the bottoms with parchment paper.
2. Whisk together the flour, cocoa powder, baking soda, baking powder, and salt in a small bowl.
3. Beat the butter and sugar with an electric mixer on medium speed for 3 to 4 minutes until pale and fluffy.
4. Add the eggs one at a time, beating on medium speed for 30 seconds after each egg, until the mixture is smooth and light.
5. Reduce the mixer speed to low and add half the flour mixture, stirring just until the flour disappears. Add the vanilla, then the remaining flour mixture, stirring just until combined. Do not overmix.
6. Stir the chopped chocolate into the hot water until melted and smooth, then pour this mixture slowly into the batter while stirring gently by hand until just combined. The batter will be thin.
7. Divide the batter evenly between the prepared pans. Tap each pan once on the counter to release air bubbles.
8. Bake on the center oven rack for 30 to 35 minutes until a toothpick inserted in the center comes out with a few moist crumbs but no wet batter.
9. Cool the cakes in the pans for 10 minutes, then turn them out onto a wire rack to cool completely before frosting or serving.