Red Velvet Cupcakes with Mascarpone Cheese Icing | Serving From Home

Ingredients

• 2 cups cake flour
• 2 cups all-purpose flour
• 1 teaspoon salt
• 3 teaspoons baking soda
• 1 cup buttermilk
• 4 large eggs
• 8 ounces cocoa paste
• 1 teaspoon vanilla extract
• 6 ounces sour cream
• 6 ounces vinegar
• 1 cup (2 sticks) unsalted butter at room temperature
• 1 cup (8 ounces) cream cheese at room temperature
• 2 cups powdered sugar
• Pinch of kosher salt
• 1 cup (8 ounces) mascarpone
• 1 teaspoon vanilla or mint extract
• 12 oz cream cheese, softened
• 12 oz butter, softened
• 1 1/2 tsp vanilla
• 3 cups icing sugar