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Thick Fudge Icing

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Thick Fudge Icing

Thick Fudge Icing
Yield2 cups, enough to frost one 9-inch (23 cm) cake
Prep10 minutes
LevelBeginner
Texture goal
Thick, glossy icing that spreads easily and sets with a shiny finish.

This thick fudge icing is the ultimate topping for blackout cakes and diner-style desserts. It's rich, glossy, and perfectly indulgent.

Why you'll want it now, Perfect for those craving a nostalgic, diner-style chocolate cake experience.

Why this recipe works

Using a combination of cocoa powder and melted chocolate creates a deep chocolate flavor, while butter adds richness and a smooth texture.

Equipment

  • Medium saucepan
  • Whisk
  • Mixing bowl
  • Spatula

How to make it

  1. In a medium saucepan, melt the butter over low heat.
  2. Remove from heat and whisk in the cocoa powder until smooth.
  3. Gradually add the powdered sugar, alternating with the milk, whisking until smooth and thick.
  4. Stir in the vanilla extract.
  5. Let the icing cool slightly before spreading on your cake.
Enjoy this thick fudge icing on your favorite cakes for a touch of nostalgic indulgence.

How you'll know it's ready

The icing should be thick and glossy, spreading smoothly without running off the cake.

Convection oven? (and if you don't have one)

This recipe doesn't require baking, so the oven type doesn't matter. Enjoy the ease of no-bake preparation!

Frosting, filling & glaze notes

The icing should fall in a slow ribbon from the spoon, indicating the perfect consistency for spreading.

Thick Fudge Icing

Troubleshooting

  • If the icing is too thick, add a little more milk, one teaspoon at a time.
  • If it's too thin, add more powdered sugar until the desired consistency is reached.
  • For a smoother finish, sift the powdered sugar before adding.
  • Let the icing cool slightly to thicken before applying to the cake.

Storage

Store leftover icing in an airtight container at room temperature for up to 3 days. Stir before using.

Make ahead

Prepare the icing up to 2 days in advance and store in an airtight container at room temperature. Stir before using.

Variations

Frequently asked questions

Can I use this icing on cupcakes?
Yes, this fudge icing is perfect for cupcakes and will set with a glossy finish.
How can I make the icing less sweet?
You can reduce the powdered sugar slightly and add a tablespoon of unsweetened cocoa powder for balance.
Can I freeze this icing?
Yes, you can freeze it in an airtight container for up to 2 months. Thaw at room temperature before using.
Is there a dairy-free option?
Use a dairy-free butter substitute and non-dairy milk like almond or oat milk.
Recipe from softsweetdough.com · Soft, sweet desserts worth every bite.