Nancy's Cinnamon Chip Cheesecake

Why I Love This Recipe
My MIL makes the best Cheesecake. Her Cinnamon Chip Cheesecake is famous... well within the family and friends at least. Mine never turns out like hers but here's the recipe.
Ingredients You'll Need
Crust:
1 1/2 c. Graham cracker crumbs
1/3 c. sugar
1/3 c. butter, melted
Filling:
3/4 c. sugar
2 tbsp flour
1/8 tsp salt
3 packages of cream cheese, room temp
6 eggs room temp
1 tbsp vanilla extract
8 oz sour cream room temp
1 10 oz. package of cinnamon chips.
Streusel Topping:
1/2 c. AP flour
1/4 c. brown sugar
1/2 tsp cinnamon
3 tbsp melted butter
Directions
In a small bowl combine flour, sugar and cinnamon.
Pour melted butter or margarine over dry ingredients, tossing with fork to form moist crumbs.
Add streusel to cheesecake at 50 min and cook for an additional 5-10 min.