Chocolate Cake with Warm Chocolate Frosting

This chocolate cake pairs an oil-based batter with a warm chocolate frosting. The recipe below keeps the original ingredient quantities and explains the mixing order, what to check during baking, and how the chocolate product affects the result.

Ingredients

Cake batter:

• 3 eggs
• 1 cup sugar
• ½ cup oil
• 1 cup warm milk
• 1 cup 50% cacao chocolate powder
• 2 cups all-purpose flour
• 1 tablespoon baking powder

Check the chocolate powder label: a product marked 50% cacao may include sugar and is not the same as unsweetened cocoa. Using a different product changes the sweetness and chocolate intensity. Use the same measuring cup throughout and level the flour rather than packing it down.

Chocolate frosting:

• 1 tablespoon butter
• 3 tablespoons cocoa powder
• ½ cup milk
• 4 tablespoons sugar

Before you start

Preheat the oven to 350°F (180°C). Grease and flour your cake pan. Choose a pan that leaves room for the batter to rise; do not fill it more than about two-thirds full. Pan dimensions were not recorded with the original recipe, so the 35–40 minute baking time below is a guide rather than a guarantee. Divide excess batter into another suitable pan instead of overfilling.

Mix and bake

1. Beat the eggs and sugar until the mixture becomes lighter in color. Add the oil and warm, not hot, milk and stir until combined.

2. Add the chocolate powder. Mix until no dry pockets remain. Add the flour gradually, folding just until incorporated. Stir in the baking powder last and stop mixing once it is evenly distributed.

3. Transfer to the prepared pan and level the top. Bake on the middle rack. Start checking around 35 minutes: the center should be set and a skewer inserted into the center should come out without wet batter. If needed, continue baking in short intervals and check again. A deeper pan may take longer.

4. Let the cake settle in its pan before handling. If you plan to turn it out, let it become firm enough to release without breaking; use the pan manufacturer’s release instructions.

Make the frosting

Put the butter, cocoa powder, milk, and sugar in a saucepan. Stir over medium heat until evenly mixed. Once it begins to boil, lower the heat as needed to prevent scorching and stir for about 3 minutes. The frosting should remain pourable. Spoon it over the cake, taking care with the hot mixture.

If the result is not as expected

• Dry cake: check doneness earlier next time and measure flour without packing it into the cup.
• Wet center: continue baking and check the center again; a browned surface alone does not establish doneness.
• Dense texture: check the baking powder date and avoid prolonged mixing after adding flour.
• Frosting too thick: remove it from the heat and stir in milk a little at a time until pourable.

About sugar substitutions

This is a cake made with sugar. The earlier sugar-free variation has been removed because different sweeteners cannot be treated as interchangeable and a tested replacement ratio has not been established here. For a reduced-sugar version, use a recipe developed for the exact sweetener rather than replacing a cup of sugar with an arbitrary amount.

Yield and timing

The original recipe gives 10–12 slices and approximately 50 minutes for preparation and baking. Allow additional time for cooling; pan size and your oven affect the actual baking time.

For another baking idea, see Banana Bread: A Timeless Comfort Food.

Updated September 24, 2026.