INGREDIENTS
2 cups
Blueberries, fresh or frozen
1 tbsp
Lemon, zest
1
Egg yolk, large
1 tbsp
Lemon juice, freshly squeezed
1 1/4 cups
All-purpose flour
1/2 tsp
Baking powder
1 tbsp
Brown sugar, packed
2 tsp
Cornstarch
13/16 cup
Granulated sugar
10 tbsp
Butter, unsalted