Apple Crumble

So...I am still behind on posting, so I am going to again post several recipes at once.

Recently, I made a great dessert for my boyfriend's house-warming party.
I combined a traditional apple pie filling with a crumble topping to make my version of apple crumble.

Ingredients
For the filling:
1/4 cup sugar
1 1/2 Tbsp flour
1/2 teaspoon cinnamon
4 Tbsp (1/4 cup) unsalted butter
4 granny smith apples, peeled and sliced (You can always use more for a larger dish)
3 Tbsp fresh lemon juice
1 teaspoon vanilla extract

For the crumble:
1/2 cup flour
1/2 cup oatmeal
1/2 cup sugar
1 stick butter until damp, and sand-like.
1/2 tsp cinnamon
1 tbsp brown sugar

Instructions
For the filling:
Set oven to 350
Put apples aside.
Melt butter and mix with sugar by hand in a medium mixing bowl. Stir in flour, cinnamon, lemon juice, and vanilla until the mixture is well-blended.
Add apples into the bowl and mix together until well covered with filling.
Dump mixture into the bottom of a buttered pie pan, fruit dish, or casserole dish.

For the crumble:
In a second mixing bowl, sift the flour, oatmeal, and sugar and then stir in butter until the mixture looks like damp sand.
Lay on top of the apple mixture.
Sprinkle cinnamon and brown sugar on top.
Put in the oven and cook for 30 minutes or until the top is golden brown and crisp.