Dark Chocolate Cake with Malted Chocolate Frosting

INGREDIENTS

1 1/3 cups

all-purpose flour

1 2/3 cups

sugar

1/2 cup

Dutch process unsweetened cocoa powder (I used Valrhona)

1 1/2 tsp

baking soda

3/4 tsp

salt

2/3 cup

vegetable oil

2/3 cup

sour cream

1 cup

water

1 tbsp

distilled white vinegar

1 tsp

vanilla extract

extra large egg

3 tbsp

unsweetened cocoa powder (I used Valrhona)

1 cup

malted milk powder

salt

1/4 cup

boiling water

1 cup

(2 sticks/226 grams) unsalted butter, at room temperature

1 cup

powdered sugar

6 oz

semi-sweet chocolate, melted and cooled (I used Callebaut)

1 tbsp

(15-30 ml) heavy cream