Mia's Apple Crisp

1 1/2 c flour
1/2 c brown sugar
1 t salt
1 c sugar, divided
2 sticks (16t) unsalted butter, cold, cut into small cubes
2 c oats
4-5lbs Granny Smith apples, peeled and cut into chunks
3 T lemon juice
1 t cinnamon

Preheat oven to 375.
In a large bowl, mix flour, brown sugar, salt, and 1/4c sugar.  Using pastry blender (or two knives), cut butter into flour mixture until the texture of coarse meal.  Add oats and use your hands to squeeze the mixture into large moist clumps.  Put bowl in freezer to chill.
Peel and cut apples.  Toss apples with lemon juice, cinnamon, and remaining 3/4c sugar. Put apples in a 2qt baking dish and sprinkle with the topping mixture.
Put baking dish on a cookie sheet and bake until golden and bubbling 60-75min.
Let cool 10 min, then serve hot with vanilla ice cream.