Shortbread

1 C butter
1/4 C sugar
1/4 C brown sugar
1 tsp vanilla
1/3 C rice flour
2/3 C flour

Butter a 9 x 9 baking pan.  Preheat oven to 325 degrees F.  In a large bowl, beat sugar, butter, and vanilla until light and fluffy.  Combine flour and rice flour and stir into butter mixture just until smooth and not crumbly.  Press evenly into pan.  Score edges with a fork.  Bake until golden brown and slightly springy - apx 45 minutes.  Cool in pan until just slightly warm.  Cut into bars and remove from pan.