INGREDIENTS
2 cups
all-purpose flour (careful not to overmeasure)
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
heavy cream
1
large egg
1 tsp
vanilla extract
1
heaping cup (190g) blueberries (fresh or frozen, do not thaw)1
coarse sugar for sprinkling on top before baking
1 cup
confectioners' sugar
3 tbsp
heavy cream (or half-and-half or milk)
1/4 tsp
vanilla extract