Homemade Strawberry PopTarts

INGREDIENTS

For the Pastry Crust:

2 1/2 cups

unbleached all-purpose flour

1 tsp

granulated sugar

1 tsp

salt

8 tbsp

cold unsalted butter, cut into ½" pieces (1 stick)

6 tbsp

shortening

6 tbsp

ice cold water

large egg mixed with 2 tablespoons milk

For the Filling:

3/4 cup

Strawberry Jam (or your favorite flavor)

1 tbsp

cornstarch

1 tbsp

cold water