Unsalted butter, softened to room temperature- ½ cup
Confectioner's sugar or powdered sugar- 1¾ cups
Heavy cream or half and half- 2 tbsp
Vanilla extract- 1 tsp
Salt- a pinch
For making Chocolate Frosting
Unsalted butter, softened to room temperature- ½ cup
Unsweetened cocoa powder- ¼ cup
Confectioner's sugar or powdered sugar- 1¾ cups
Heavy cream or half and half- 2 tbsp
Vanilla extract- 1 tsp
Salt- a pinch
Instructions
Making the batter
Preheat oven to 350 F.
Sift all the above-mentioned dry ingredients together into a bowl. Keep aside.
You could combine the ingredients using a stand mixer or use an electric hand mixer.
Add the melted butter and sugar into a stand mixer bowl, combine using a whisk attachment of the stand mixer.
Add the egg and beat at medium speed.
Add yogurt, milk and vanilla extract, beat at medium speed for a minute.
Slowly, add the dry ingredients and combine at medium speed till a thick smooth batter is formed.
To make the chocolate batter: Pour ¾ th cup of the prepared vanilla batter into another bowl, add cocoa powder and 1 tablespoon milk. Combine well using a spatula till a thick batter without any lumps have formed.
Place the cupcake liner into the cupcake pan.
First, pour some chocolate batter & then top with some vanilla batter.
Fill with batter only till ¾th of the cupcake liner.
On the very top add a teaspoon of chocolate batter & a teaspoon of vanilla batter.
Using a fork you could make some patterns on the top, gently swirl the batter, don't combine the batter.
Place the pan in the preheated oven, on the lower rack and bake for 20 to 25 minutes or until a fork inserted into the center of the cupcake comes out clean.
Take the pan from the oven, let cool down completely.
You can also enjoy these cupcakes without the frosting.
If you are making the frosting, follow these steps.
Making vanilla frosting
The butter should be softened to room temperature, do not melt it in the microwave.
Into the stand mixer bowl, add the softened butter.
Using the paddle attachment, beat the butter at medium speed till creamy, for 2 minutes.
Add confectioner's sugar, salt, vanilla extract and cream.
Increase the speed and beat for full 3 minutes till the frosting is smooth and creamy.
If the frosting is too thick add more cream and if it's thin add more sugar.
Keep aside the vanilla frosting.
Making chocolate Frosting
Sift together the confectioner's sugar and cocoa powder together without any lumps into a bowl.
Into the stand mixer bowl, add the softened butter.
Using the paddle attachment, beat the butter at medium speed till creamy- for 2 minutes.
Add confectioner's sugar-cocoa powder mix and salt, alternatively with cream and vanilla extract.
Beat at low speed after each addition.
Increase the speed and beat at high speed for 2 minutes till the frosting turns smooth and creamy.
How to frost the marble cupcakes
Use 1M Wilton tip to create the swirl pattern.
Attach the tip into a piping bag and snip off the end so that the tip fits through the hole.
Place the piping bag with the tip into a tall glass.
Spoon one side of the piping bag with vanilla frosting and the other side with the chocolate frosting.
Before frosting on the cupcakes, first pipe some frosting on a plate when you see both the frostings coming out together you can start piping on the cupcakes.
Now, create the swirl shape and frost the top of the cupcakes.
Enjoy these delicious marble cupcakes with both chocolate & vanilla frosting, absolutely yum.
Recipe by Cooking with Thas - Smart Cooking, Smart Living at https://thasneen.com/cooking/marble-cupcakes-with-buttercream-swirled-frosting/