Preheat the oven to 350 degrees Fahrenheit.
Grease a 9x5 loaf pan with cooking spray.
In a stand mixer, using a flat paddle attachment, beat the egg, milk, and oil for 30 seconds on low..
Then add in the 2 cups flour, white granulated sugar, brown sugar, baking powder, and salt. Mix for 30 seconds then add in the vanilla extract and mix for an additional 30 seconds until the contents resemble a smooth batter.
Toss the blueberries with 1 tablespoon of all-purpose flour. Then fold them into the batter.
Pour the batter into a greased 9x5 loaf pan. Bake for 55 minutes.
Cool for 30 minutes then place a plate on top of the loaf pan and flip upside down to release the bread. Slice bread and enjoy.