Red Velvet Marble Cupcakes 🍰

  These Red Velvet Marble Cupcakes combine a light vanilla batter with  rich red velvet swirl and are topped with a beautifully marbled red velvet cream cheese frosting. Perfect for any celebration!

Ingredients:
For the Cupcakes:

1/2 cup milk, room temperature 🥛
1/2 cup sour cream, room temperature 🍶
1 1/2 cups all-purpose flour 🌾
2 tablespoons cornstarch 🌽
1/2 teaspoon baking powder 🧁
1/4 teaspoon baking soda 🥄
1/2 teaspoon Kosher or sea salt 🧂
1/2 cup unsalted butter, room temperature 🧈
1 cup granulated sugar 🍬
2 large eggs, room temperature 🥚🥚
2 teaspoons pure vanilla extract 🍨
For the Red Velvet Portion:

1 tablespoon cocoa powder 🍫
1 tablespoon milk 🥛
1-2 teaspoons liquid red food coloring (or gel + water) 🔴
For the Marbled Red Velvet Cream Cheese Frosting:
8 oz cream cheese, softened 🧀
1 cup unsalted butter, softened 🧈
1 lb confectioner’s sugar 🍬
Pinch of Kosher or sea salt 🧂
2 teaspoons pure vanilla extract 🍨
1 tablespoon natural unsweetened cocoa powder 🍫
1-2 teaspoons liquid red food coloring 🔴
Instructions:
1️⃣ Make the Cupcakes:

Preheat oven to 350°F (180°C) and line a muffin tin with cupcake liners.
In a liquid measuring cup, whisk together the milk and sour cream. Set aside.
In a medium bowl, whisk the flour, cornstarch, baking powder, baking soda, and salt.
In a large bowl, beat the butter until light and fluffy. Add sugar and continue beating. Add eggs one at a time, beating after each addition. Stir in vanilla.
Gradually mix in half of the dry ingredients, followed by half of the milk mixture. Repeat with the remaining ingredients until just combined.
2️⃣ Make the Red Velvet Portion:

In a small bowl, combine 1 cup of the batter with cocoa, milk, and red food coloring. Stir to combine.
3️⃣ Assemble the Cupcakes:

Add 1 tablespoon of plain batter to each liner, followed by 1 tablespoon of red velvet batter, then another tablespoon of plain batter. Fill liners 2/3 full.
Tap the pan on the counter to release air bubbles. Bake for 18-19 minutes,