Apple Pie Bars

INGREDIENTS

CRUST:

1 1/2 cups

unsalted butter, at room temperature

3/4 cup

granulated white sugar

3 cups

all-purpose flour

1/2 tsp

cinnamon

1/4 tsp

nutmeg

1/2 tsp

kosher salt

FILLING:

6 tbsp

unsalted butter, thinly sliced

1/2 cup

light brown sugar

6 lb

(about 12) Granny Smith apples , peeled, cored & thinly sliced

1 tbsp

cinnamon

1/4 tsp

nutmeg, freshly grated (preferred)

1/2 cup

water, as necessary

TOPPING:

3 cups

quick cooking oats

2 cups

all-purpose flour

1 1/2 cups

light brown sugar

1 1/4 tsp

cinnamon

1/2 tsp

baking soda

1/2 tsp

kosher salt

1 1/2 cups

unsalted butter, cut into 1/2-inch cubes and chilled