Blueberry Kuchen - cooking recipe

Ingredients

1 cup flour, plus
2 tablespoons flour, divided
1/8 teaspoon salt
2 tablespoons sugar, plus
2/3 cup sugar, divided
1/2 cup butter, slightly softened
5 cups blueberries, divided
1/8 teaspoon cinnamon
1 tablespoon vinegar

Preparation

Mix 1 c flour, salt and 2 T sugar.
Cut in butter until it resembles coarse crumbs.
Sprinkle with vinegar.
Shape into dough and with lightly floured fingers press into springform 9\" cake pan (about 1/4\" on bottom, less thick and 1\" high around the sides).
Add 3 c blueberries.
Mix remaining 2 T flour with remaining 2/3 c sugar and cinnamon.
Sprinkle over blueberries.
Bake on lowest rack at 400 deg for 50-60 mins or until crust is browed and filling bubbles.
Remove from oven and sprinkle with remaining blueberries.
Cool and remove rim of pan.