01 -
Preheat oven to 350°F (175°C). Spray a bread pan with non-stick spray and set aside.
02 -
Dice enough rhubarb to equal 2 cups and set aside.
03 -
In a large bowl, whisk together the egg, buttermilk, oil, sugar, and vanilla extract.
04 -
Whisk in the baking powder and salt. Gradually fold in flour until the mixture is well combined.
05 -
Gently fold in diced rhubarb into the batter.
06 -
Pour the batter into the prepared pan and evenly sprinkle 1 tablespoon of sugar over the top.
07 -
Bake for 60 to 65 minutes, or until a toothpick inserted into the center comes out clean.
08 -
Let the bread cool for 15 minutes before removing it from the pan.