peanut butter crumble topped apple pie

Ingredients For peanut butter crumble topped apple pie

• 1

  8 ounce container sour cream
• 3/4 c

  packed light brown sugar
• 2

  eggs
• 3/4 c

  flour divided
• 1 Tbsp

  vanilla
• 1 tsp

  lemon juice
• 1/4 tsp

  salt
• 4 c

  peeled and thinly sliced apples
• 1

  unbaked 9 inch pie crust
• 1 c

  quick-cooking or rolled oats
• 1 tsp

  ground cinnamon
• 1 c

  creamy peanut butter
• 1 Tbsp

  butter or margrine softened