In a medium bowl, combine the flour, baking powder, and salt. Whisk to mix and set aside.
In a large bowl, combine the sugar, oil, egg, milk, and vanilla. Stir to mix well.
Add the dry ingredients to the wet. Stir to just combine, don’t over mix, it will cause tough bread.
Fold in the diced rhubarb.
Spoon into a greased loaf pan.
Bake 350 degrees for about 60 minutes or until a toothpick comes out clean when inserted in the center.
Cool in the pan for 5 minutes and then remove from pan and cool completely on a wire rack.
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Notes
If you need to eat dairy free, you can use soy milk or almond milk in this recipe instead of regular milk.If you need to avoid eggs, you can use 1 tablespoon of soy flour with 1 tablespoon of water instead of an egg.