Black Velvet Ghost Cupcakes

Name: Black Velvet Ghost Cupcakes
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: American
Ingredients: 1 cup cake flour (substitute all purpose flour); 1/2 cup black cocoa powder (substitute dutch cocoa powder); 1 teaspoon baking powder; 1/4 teaspoon baking soda; 1/4 teaspoon kosher salt; 1/3 cup vegetable oil; 2 large eggs (room temperature); 1 teaspoon vanilla extract; 1 cup granulated sugar; 1/2 cup buttermilk (substitute whole milk + 2 teaspoons white vinegar); 1 teaspoon white vinegar; 1/2 cup unsalted butter (room temperature); 8 ounces cream cheese (room temperature); 4 cups powdered sugar; 1/2 teaspoon vanilla extract; pinch kosher salt; 1-2 tablespoons heavy cream (if needed for consistency ); candy eyes