1 c. flour
Pinch of salt
1/2 c. butter
2 tbsp. sugar
1 tbsp. vinegar

Combine flour, sugar, and salt; cut in butter; sprinkle with vinegar; stir with fork to form dough. Press dough into bottom and up sides of 9 inch pan (can use springform pan).

TOP:

2 tbsp. flour
1/8 tsp. cinnamon
1 c. sugar
3 c. blueberries