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Cooked Chocolate Icing

This ultra rich chocolatey old fashioned boiled chocolate icing is ready in just 10 minutes! Cooked chocolate icing is crackly and fudgy and perfect for topping sheet cake.

Slice of cake with chocolate icing.
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Boiled Chocolate Icing

If you’ve ever tried chocolate Texas sheet cake, then you know just how delicious this boiled chocolate icing is. It’s an old fashioned sweet and fudgy favorite that you may remember Grandma whipping up on the stovetop.

It has all the same ingredients as a chocolate buttercream frosting, but is cooked on the stove instead of creamed together with an electric mixer. The sugar and cocoa powder dissolve with the melted butter while cooking, resembling the texture of a rich chocolate ganache.

Powdered sugar is sifted in then the icing is poured on top of your dessert, keeping it moist and adding a thick and glossy fudge finish.

Why I Love This Recipe

  • Ready in 10 minutes. This cooked chocolate frosting recipe is made from start to finish on the stovetop in less than 10 minutes.
  • Locks in moisture. After pouring the boiled chocolate icing on top, it will harden and create the perfect fudgy layer which helps to lock in the moisture in the cake.

Recipe Ingredients

Chocolate icing ingredients on counter.

Find the full printable recipe with specific measurements below.

  • Cocoa powder: Make sure to use unsweetened cocoa powder since the majority of the sweetness will come from the powdered sugar.
  • Powdered sugar: Adds a sweet flavor and thick texture. Make sure to sift the powdered sugar first, so that your icing isn’t lumpy.
  • Butter: Using salted butter will add the best flavor. Cube it first before adding to the pan for easier melting.
  • Milk: Used to help thin out the icing. Whole milk will add the richest flavor.
  • Vanilla: A high quality vanilla extract will give you the perfect boost of vanilla.

How to Make Boiled Chocolate Icing

This cooked chocolate icing recipe is super easy to whip up on the stove in just 10 minutes. Follow the simple steps below to get started.

Whisking chocolate icing in a pot.
  • Melt. Chop the butter into cubes and then add to a medium saucepan. Melt over low heat, then stir in the unsweetened cocoa powder. Let the mixture come to a light boil, then remove the pan from the heat.
  • Whisk. Slowly whisk in the milk, vanilla extract and sea salt. Once combined, then whisk in the powdered sugar until dissolved and smooth.

Tips and Variations

  • Cube the butter. Chop the butter into pieces before adding to the pan so that it melts more evenly and quickly.
  • Sift the powdered sugar. To avoid a lumpy or grainy texture, make sure to sift the powdered sugar through a fine mesh strainer before whisking into the icing.
  • For a crunchy variation with a rich, nutty taste, fold some chopped pecans or walnuts into the cooked chocolate icing. It adds great flavor and texture!
  • Frost immediately. Add the frosting on top as soon as you take your dessert out of the oven so the icing can soak into the cake, brownies or Texas sheet cake cookies recipe. It will thicken quickly!
Pouring chocolate icing over cake.

Ways to Use Cooked Chocolate Frosting

This boiled chocolate icing recipe works best as a spreadable topping, making it perfect for sheet cakes, brownies and bars.

I wouldn’t recommend using it for cakes with multiple layers because the consistency is a bit too thin and smooth. Stick with a traditional chocolate buttercream frosting for desserts such as a layer cake.

Slice of chocolate Texas sheet cake on baking sheet.

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Pouring chocolate icing over cake.

Boiled Chocolate Icing

4.97 from 31 votes
↑ Click stars to rate now!
Author: Jamielyn Nye
Fudgy, rich and ultra chocolatey, this old fashioned boiled chocolate icing is ready in just 10 minutes! The perfect finishing touch for your baked goods.
Prep Time: 5 minutes
Cook Time: 5 minutes
Total Time: 10 minutes
Servings: 35

Ingredients 

  • ½ cup (113 grams) salted butter , cubed
  • 3-4 Tablespoons (15 grams) unsweetened cocoa powder
  • cup milk
  • 1 teaspoon vanilla extract
  • teaspoon table salt or fine sea salt
  • 3 cups (330 grams) sifted powdered sugar

Instructions

  • In a medium saucepan, melt 1/2 cup butter over low heat. Stir in 3-4 Tablespoons cocoa powder. Once the mixture has melted and comes to a light simmer, remove from heat. Slowly whisk in 1/3 cup milk, 1 teaspoon vanilla, and 1/8 teaspoon salt. Then slowly stir in 3 cups powdered sugar.
  • Pour the icing over your sheet-pan cake or brownies the moment they come out of the oven. Spread evenly with a rubber spatula immediately.

Notes

Nut lovers: Chop 1/2 to 3/4 cup pecans and mix into the frosting. 
Halve the recipe: This recipe will cover a cake or brownies the size of a half-sheet baking pan (perfect for Texas sheet cake). You can halve this recipe for a 9×13-inch cake or brownies.  

Nutrition

Serving: 1g | Calories: 107kcal | Carbohydrates: 21g | Protein: 0.4g | Fat: 3g | Saturated Fat: 2g | Polyunsaturated Fat: 0.1g | Monounsaturated Fat: 1g | Trans Fat: 0.1g | Cholesterol: 7mg | Sodium: 32mg | Potassium: 24mg | Fiber: 0.5g | Sugar: 20g | Vitamin A: 89IU | Calcium: 5mg | Iron: 0.2mg

Nutrition provided is an estimate. It will vary based on specific ingredients used.

Course: Dessert
Cuisine: American
Diet: Gluten Free, Vegetarian

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