Homemade Chocolate Frosting in a bowl with a spoon.
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5 from 6 votes

Sour Cream Chocolate Frosting

This Sour Cream Chocolate Frosting has a subtle tang that tastes amazing on a wide variety of cakes! It can be customized for more or less sweetness and a thicker or thinner consistency.
Prep Time10 mins
Cook Time5 mins
Total Time15 mins
Course: Condiments, Dessert
Cuisine: American
Keyword: chocolate frosting
Servings: 10 servings (approximation based on 10 slices of cake)
Calories: 228kcal
Author: Jennifer Farley


  • 4 ounces unsalted butter
  • 2 ounces unsweetened chocolate, chopped
  • 1/3 cup Dutch-processed cocoa powder, sifted
  • 2 teaspoons pure vanilla extract
  • 10 ounces confectioners' sugar, sifted (approximately 2 cups)
  • 2/3 - 1 cup sour cream


  • Add the butter and chocolate to a large, heatproof bowl. Bring 1-2 inches of water to a simmer in a medium saucepan. Turn the heat down to low and set the bowl on top. Stir together with a spatula until the chocolate and butter have melted together and are smooth, then remove the bowl from the heat.
  • Once combined, pour into a large bowl and whisk in the cocoa powder and vanilla extract (Note: you can also use an electric mixer for the following steps). Whisk in about half of the sugar and sour cream. The frosting will be very thick at this point.
  • Keep whisking in additional sugar and sour cream until the desired texture and flavor is reached. I typically add most of the sour cream and not all of the sugar.
  • This frosting will keep in an airtight container in the refrigerator for 1 week. It can be frozen for up to 3 months. Allow it to come to room temperature before using, and use a whisk, electric mixer, or stand mixer to fluff it back up prior to using.


Yields approximately 2 to 2 1/2 cups total (it will vary slightly depending on how much sour cream and sugar you use). That's enough for approximately 15-18 cupcakes or one sheet cake. I recommend doubling the recipe if you want to use it for a layer cake. 


Calories: 228kcal | Carbohydrates: 31g | Protein: 1g | Fat: 12g | Saturated Fat: 7g | Cholesterol: 24mg | Sodium: 3mg | Potassium: 90mg | Fiber: 1g | Sugar: 27g | Vitamin A: 285IU | Calcium: 12mg | Iron: 1.4mg