Heat oven to 350 degrees and spray loaf pan with baking spray.

In a large bowl blend four, baking powder, salt and lemon zest.

In a small bowl place blueberries and 1 tablespoon of flour, stir to coat blueberries.

In mixing bowl blend butter or coconut oil and add sugar, then add eggs one at a time and then vanilla.

While mixer is running, alternate between adding flour mixture and milk, ending with flour.

Scrape down sides and gently add 1/2 of the blueberries to mixing bowl and blend by hand.

Pour batter into prepared loaf pan and pour remaining blueberries over top gently smoothing into batter.

Place in oven for one hour.

Add lemon juice and 2 tablespoons of sugar in a small bowl and blend until sugar dissolves.

Once you remove bread from oven, poke holes in top of bread using skewer, or a sharp knife. This will allow sugar glaze to seep down through bread.

Pour glaze over top.

Let rest for 30 minutes before removing from pan.

Sprinkle powdered sugar over top of bread.