Cherry Crisp Pie

INGREDIENTS

1 cup

granulated sugar

3 tbsp

quick-cooking tapioca or cornstarch

16 - ounce package frozen unsweetened pitted tart red cherries

Single Crust Pie Shell (Helen Fletcher's No Fail Pie Crust)

2/3 cup

rolled oats

2/3 cup

all-purpose flour

1/2 cup

packed brown sugar

1/4 tsp

salt

1/4 tsp

ground cinnamon

6 tbsp

butter

1 3/4 cups

cake flour or all-purpose flour

1/3 cup

all-purpose flour

3/4 tsp

salt

6 tbsp

cold butter, cut into pieces

3 tbsp

shortening

5 tbsp

cold water

2 tbsp

lightly beaten egg or 1 egg yolk

1 tsp

lemon juice or vinegar