Originally Posted by bearisgray

9 x 13 x 2 glass baking dish - greased
Baking temperature: 325 degrees F

2-1/2 cups sifted flour
1 teaspoon baking soda
1 teaspoon salt
1-1/2 cups brown sugar, firmly packed

1 large egg, beaten
2/3 cup cooking oil
1 cup sour milk*
1 teaspoon vanilla

1-1/2 cups finely diced fresh rhubarb*
1/2 cup chopped walnuts

1 tablespoon melted butter
1/2 cup sugar
1/2 teaspoon ground cinnamon

Sift together flour, baking soda, and salt into bowl. Mix in brown sugar.
Combine egg, oil, sour milk, and vanilla.
Add to dry ingredients, blending well.
Stir in rhubarb and walnuts.
Spread batter in greased glass baking dish (2 x 13 x 2 inches)

Combine sugar, melted butter, and cinnamon - mix well. Sprinkle over batter.
Bake in 325 degree F oven for 55 minutes or until done.
Cut in squares and serve warm or cold.

Better with whipped cream or Cool Whip.

*to make sour milk: In a liquid measuring cup, put one tablespoon lemon juice or white vinegar, and fill to the one cup line with milk.

**Could also use chopped tart apples.

Source: Country Fair Cookbook, ISBN 0-385-02249-2, Copyright 1975, page 58.
(Modified by SIS)

My sister says this cake freezes well. I don't know - it's never lasted long enough to have any to put in the freezer.