Golden Delicious Apple Pie With Oatmeal Crumb Topping

INGREDIENTS

basic flaky pie pastry (9 1/2 inch deep dish uncooked and refrigerated)

7 cups

peeled cored and thinly sliced golden delicious apples

1/3 cup

granulated sugar, plus

1 tbsp

granulated sugar

lemon, juice of

lemon, zest of

1/4 tsp

ground nutmeg

1 1/2 tbsp

cornstarch

1 cup

all-purpose flour

1/2 cup

rolled oats (old-fashioned or quick-cooking)

2/3 cup

firmly packed light brown sugar

1/2 tsp

ground cinnamon

1/4 tsp

salt

1/2 cup

cold unsalted butter, cut into 1/4-inch pieces