Ohelo Berry Bars

1 c butter

3 c flour

2 1/4 c sugar, divided

3-4 c ohelo berries

1 tbsp cornstarch

3 tbsp flour

3 tbsp water

Preheat oven to 350 degrees. Combine butter, flour, and 3/4 c sugar. Press 2/3 of mixture into a 9 x 13" pan and bake for 15 minutes. Reserve remainder for topping. While crust is baking, combine berries and remaining 1 1/2 c sugar in a saucepan and bring to a boil. Combine cornstarch, flour, and water. When berries start releasing liquid, add some liquid to cornstarch mixture. When berries have been boiling for 8 minutes, add cornstarch mixture and cook 2 minutes longer. Spread on baked crust, sprinkle reserved topping evenly over fruit. Bake for an additional hour. Cool completely before cutting into bars.