Dark Chocolate and Caramelized White Chocolate Cupcakes

INGREDIENTS

3/4 cup

whole milk

1/3 cup

canola oil

large egg

1 tsp

vanilla extract

3/4 cup

granulated sugar

1 cup

all-purpose flour

1/3 cup

dark or dutch process cocoa powder

3/4 tsp

baking powder

1/2 tsp

baking soda

1/4 tsp

kosher salt

1/8 tsp

cinnamon

8 oz

good quality white chocolate, finely chopped*

1/3 cup

heavy cream, plus more as needed

1/2 cup

unsalted butter, room temperature

1 1/4 cups

powdered sugar, sifted, plus more as needed