Flour, for dusting
One 14.1-ounce box refrigerated pie crust (2 crusts total)
2 cups blueberries
3 tablespoons sugar
2 teaspoons lemon zest, plus 1 tablespoon fresh lemon juice
1 large egg
Sanding sugar, optional
The blueberry juice will likely leak from the hand pies while they are baking, but have no fear! The juice will thicken as the hand pies cool.