1/2 c. butter
1 c. sugar
1/2 tsp. baking soda
3 c. flour

Melt butter gently. Meanwhile, mix sugar, baking soda, and flour. Add butter and crumble. Divide in half and press 1/2 out to line bottom of 9 inch square pan.

FILLING:

5 tbsp. flour
1/4 tsp. salt
1 1/2 c. sugar
4 c. rhubarb (2 lbs.), cut in 1 inch pieces

Combine ingredients, except rhubarb. When mixed, pour over rhubarb and toss to coat well. Place in pan with crumb crust and sprinkle remaining crust on top. Bake 1 hour in preheated 350 degree oven. Sprinkle with confectioners' sugar and cut in squares and serve. may be served with ice cream.