Step 1

Heat oven to 375 degrees and lightly grease 9″ cast iron skillet.

Step 2

Add apples, lemon juice, sugar, flour, cinnamon, vanilla, and salt to a large bowl.

Step 3

Toss gently with your hands to coat the apples evenly in the mixture.

Step 4

Dump apples into the greased baking dish.

Step 5

Add flour, oats, brown sugar, cinnamon, cubed butter, and salt to a medium bowl.

Step 6

Use your hands, a fork, or a pastry cutter to combine ingredients and gently break butter up into pea-size pieces as you mix everything together.

Step 7

Spread topping in an even layer across the apples.

Step 8

Bake for 30 minutes or until the apples are fork-tender and the crisp is a dark golden brown. Serve with vanilla ice cream and enjoy!