Why does the recipe call for hot coffee? Can I use boiling water instead?

When I first tried this recipe, I was curious about the coffee too. The hot coffee doesn’t make the cake taste like coffee—it simply enhances the depth of the chocolate. I’ve also tried using boiling water, and while the cake still turned out delicious, the version with coffee had a richer, more intense chocolate flavor.

Can I use milk instead of buttermilk?

I once made this cake without buttermilk and substituted regular milk. The cake still worked, but it wasn’t quite as tender or flavorful. If you don’t have buttermilk on hand, you can make a quick substitute by adding a teaspoon of lemon juice or vinegar to a cup of milk and letting it sit for a few minutes. That little bit of acidity makes a noticeable difference.

One Bowl Chocolate Fudge Cake Recipe

Name: One Bowl Chocolate Fudge Cake
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Yield: 12 servings
Cuisine: American
Ingredients: 1 cup all-purpose flour; 1 cup granulated sugar; 1/2 cup unsweetened cocoa powder; 1 tsp baking soda; 1/2 tsp salt; 1 cup buttermilk; 1/2 cup vegetable oil; 2 large eggs; 1 tsp vanilla extract; 1/2 cup hot coffee (or hot water)

Description

Enjoy a lighter chocolate treat with this One Bowl Chocolate Fudge Cake. Made with rich cocoa and simple, wholesome ingredients, it’s moist, fudgy, and perfect for those who want indulgence without excess calories.

Ingredients

1 cup all-purpose flour

1 cup granulated sugar

1/2 cup unsweetened cocoa powder

1 tsp baking soda

1/2 tsp salt

1 cup buttermilk

1/2 cup vegetable oil

2 large eggs

1 tsp vanilla extract

1/2 cup hot coffee (or hot water)

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Instructions

Prepare the Pan: Preheat oven to 350°F (175°C). Grease and line a 9-inch round cake pan with parchment paper.

Mix Dry Ingredients: In a large bowl, whisk together flour, sugar, cocoa powder, baking soda, and salt until evenly blended.

Add Wet Ingredients: Pour in buttermilk, vegetable oil, eggs, vanilla, and hot coffee directly into the same bowl.

Combine Gently: Whisk until just combined—avoid overmixing to keep the cake fudgy.

Bake: Pour batter into prepared pan. Bake 30–35 minutes or until a toothpick inserted in the center comes out with moist crumbs.

Cool and Serve: Let cake cool for 10 minutes in the pan, then transfer to a wire rack. Frost or dust with powdered sugar as desired.

Prep Time: 10 min
Cook Time: 35 min
Category: Dessert
Method: Baking
Cuisine: American