1 cup white sugar
two tablespoon cornstarch
2 1/2 cups crushed pineapple and juice
1 3/4 cups flour
1 cup brown sugar
1 tsp salt
1/2 tsp baking soda
1 1/2 cups rolled oats
3/4 cup butter or margarine

For filling:
Combine white sugar and cornstarch in a small pan; add pineapple. Cook over medium heat until thick; set aside

For crust:
Combine flour, brown sugar, baking soda, salt and oats; cut in butter until mixture is crumbly. Place half of crust mixture in greased 9 x 13 inch pan; pat down firmly.

To assemble:
spread filling evenly on top of the crust; add remaining crust and pat down as firmly as possible. Bake in a 400° F oven for 25 to 30 minutes. remove from oven and let cool then cut into bars. Recipe makes about 20 Pineapple Secret Bars.