1/3 cup coconut oil
1 tsp. baking soda
1 cup sour milk
1 ½ cups bean flour
1/2 cup coconut flour
1 ½ cups diced rhubarb
Preheat oven to 350ºF
Mix together ½ cup brown sugar and 1 tbs cinnamon
Sprinkle brown sugar mixture into a grease 9” X 13” pan.
Mix all of the ingredients together, beating until smooth.
Pour cake mixture into pan.
Bake for 30 minutes. (A toothpick inserted into the center will come out clean)