INGREDIENTS
1
and 2/3 cups (210g) all-purpose flour (careful not to overmeasure)
1/3 cup
unsweetened cocoa powder (dutch process is OK)
1/2 cup
(100g) granulated sugar
2
and 1/2 teaspoons baking powder
1/2 tsp
ground cinnamon
1/2 tsp
salt
1/2
cup (115g) unsalted butter, frozen
1/2 cup
+ 1 Tablespoon (135ml) heavy cream
1
large egg
1
and 1/2 teaspoons vanilla extract
6 oz
semi-sweet chocolate, coarsely chopped1
1 cup
confectioners' sugar
1 tsp
vanilla extract
2 tbsp
water (black coffee works too!)
4 oz
semi-sweet chocolate, coarsely chopped1