01 - Preheat oven to 350°F. Grease and line an 8.5x4.5-inch loaf pan with parchment paper.
02 - In a medium bowl, whisk together all-purpose flour, baking powder, and salt.
03 - In a large bowl, rub together granulated sugar and lemon zest to release oils.
04 - Whisk Greek yogurt, vegetable oil, eggs, fresh lemon juice, and vanilla extract into the sugar mixture until smooth.
05 - Fold the dry ingredient mixture into the wet ingredients gently until just combined.
06 - Toss blueberries with 1 teaspoon flour then fold them quietly into the batter.
07 - Pour the batter into the prepared loaf pan and smooth the surface evenly.
08 - Bake for 50 to 55 minutes or until a toothpick inserted into the center comes out clean.
09 - Allow the loaf to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.
10 - Mix powdered sugar with fresh lemon juice until smooth and drizzle over the cooled loaf before slicing.