In a small trough, combine outset 5 ingredients, and set aside for topping. In
a medium mixing roll, stir together the flours, baking pulverise, cinnamon,
baking soda and saltiness. Set parenthesis. Combine yogurt and milk In a large mixing
roll, beat together brown sugar and butter. Add eggs and vanilla. Beat
until fluffy. To this assortment, alternately add the 2-flour mixture and
the yogurt assortment, beating until well blended. Fold in the rhubarb. Pour
batter into a greased and floured 9x13-inch baking dish or pan. Sprinkle
topping over hitter. Bake at 350 degrees for 45 to 50 proceedings, or until
through. Serve warm or coolheaded.