Finding the right Black Frosting Recipe can be tricky. Most recipes call for WAY too much black food coloring which will turn your mouth black and won’t taste very good. Or it doesn’t turn out black at all– just a bland, ugly gray instead.

When I made this Galaxy Geode Birthday Cake, I found the PERFECT recipe for black frosting. It won’t change the color of your mouth, tastes delicious, and is a deep, dark black color.

Black Frosting Recipe + Galaxy Geode Birthday Cake

Here’s What I used to Make this Cake:

Black Frosting Recipe + Galaxy Geode Birthday Cake

  • the black frosting recipe in this post
  • vanilla buttercream for the filling
  • a white cake recipe (I actually adapted this crazy cake recipe for three 8-inch layers)
  • food coloring (purple, turquoise, pink, and black)
  • silver edible paint
  • sprinkles: black sanding sugar sprinkles, silver stars, and gold stars
  • disco dust
  • purple rock candy

Black Frosting Ingredients

Black Frosting Recipe + Galaxy Geode Birthday Cake

  • 2 cups butter, softened
  • 5 cups powdered sugar
  • 1 cup DARK chocolate cocoa powder (or premium black cocoa powder)
  • 3/4 cup hot water
  • 2 tsp vanilla extract
  • 8 ounces dark chocolate
  • 2-3 tsp black gel food coloring

How to Make this Black Frosting Recipe

Black Frosting Recipe + Galaxy Geode Birthday Cake

1. In a stand mixer, beat the butter with a paddle attachment for 2 minutes.

2. In a small mixing bowl, mix together the hot water and the cocoa powder. It will form a thick paste. Set aside.

3. In another bowl, melt the chocolate chips. Let cool slightly before mixing the chocolate into the butter. Beat on medium-high speed and scrape down the sides as needed.

4. Add the chocolate paste, vanilla, and 1 cup of powdered sugar. Mix well, scraping down the sides as needed.

5. Gradually mix in the rest of the powdered sugar, scraping down the sides as needed.

6. Mix in the black food coloring. Note: IT WILL NOT LOOK SOLID BLACK YET. The color will need to develop over a few hours, so cover the bowl and let it rest.

General Steps to Make Galaxy Geode Cake

I didn’t have the time to take step-by-step photos or make a video for an in-depth tutorial for this cake, but I’m going to list the general steps here and do my best to highlight the steps in the photos below.

Black Frosting Recipe + Galaxy Geode Birthday Cake

1. Bake three 8-inch round cakes, and let cool completely.

2. Reserve 1/2 cup of frosting. Fill the cake layers with remaining vanilla frosting and cover with a crumb coat. Chill the cake in the freezer for about 30 minutes.

3. Color 1/4 of the reserved frosting with purple. Divide the remaining frosting into two bowls and color them with the turquoise and the pink colorings. Cover the bowls and set aside.

4. Frost the cake with the black frosting. The video below shows step-by-step beginner instructions for frosting a cake and getting smooth edges. 

 

Add small “globs” of pink, purple, and turquoise frosting around the cake before smoothing to create a “galaxy” look.

Black Frosting Recipe + Galaxy Geode Birthday Cake

5. Cut a gash in the cake. It doesn’t have to be perfect!

Black Frosting Recipe + Galaxy Geode Birthday Cake

6. Spread purple frosting inside the gash. Gently press rock candy pieces into the purple frosting. Food tweezers help!

7. Paint the edges of the rock candy with the silver edible paint.

Black Frosting Recipe + Galaxy Geode Birthday Cake

8. Splatter silver paint all over the cake. Add star sprinkles and disco dust.

Check out this Easter Egg cookie video for a visual on how to “splatter” the paint.

Products

Here are links to some of the products I used to decorate this cake. Everything can be purchased on Amazon, and many of these products can be found at local retailers like Walmart and Michaels.


















Black Frosting Recipe + Galaxy Geode Birthday Cake

Black Frosting Recipe

Prep Time: 20 minutes
Total Time: 20 minutes

When I made this Galaxy Geode Birthday Cake, I found the PERFECT recipe for black frosting. It won't change the color of your mouth, tastes delicious, and is a deep, dark black color.

Ingredients

  • 2 cups butter, softened
  • 5 cups powdered sugar
  • 1 cup DARK chocolate cocoa powder (or premium black cocoa powder)
  • 3/4 cup hot water
  • 2 tsp vanilla extract
  • 8 ounces dark chocolate
  • 2-3 tsp black gel food coloring

Instructions

  1. In a stand mixer, beat the butter with a paddle attachment for 2 minutes.
  2. In a small mixing bowl, mix together the hot water and the cocoa powder. It will form a thick paste. Set aside.
  3. In another bowl, melt the chocolate chips. Let cool slightly before mixing the chocolate into the butter. Beat on medium-high speed and scrape down the sides as needed.
  4. Add the chocolate paste, vanilla, and 1 cup of powdered sugar. Mix well, scraping down the sides as needed.
  5. Gradually mix in the rest of the powdered sugar, scraping down the sides as needed.
  6. Mix in the black food coloring. Note: IT WILL NOT LOOK SOLID BLACK YET. The color will need to develop over a few hours, so cover the bowl and let it rest.
Nutrition Information:
Yield: 16 Serving Size: 1
Amount Per Serving: Calories: 495Total Fat: 32gSaturated Fat: 20gTrans Fat: 1gUnsaturated Fat: 10gCholesterol: 63mgSodium: 190mgCarbohydrates: 52gFiber: 2gSugar: 47gProtein: 2g

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