01 - Preheat oven to 350°F. Grease and line a 9×5-inch loaf pan with parchment paper.
02 - Whisk together Greek yogurt, eggs, vegetable oil, lemon zest, fresh lemon juice, and vanilla extract until smooth.
03 - Sift together all-purpose flour, baking powder, baking soda, salt, and granulated sugar in a separate bowl.
04 - Gradually add dry ingredients to wet mixture. Stir gently until just combined, avoiding overmixing.
05 - Toss blueberries with 1 tablespoon all-purpose flour to prevent sinking, then fold carefully into the batter.
06 - Pour batter into prepared loaf pan and smooth the surface. Bake for 45–55 minutes until a toothpick inserted in center comes out clean.
07 - Allow the loaf to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
08 - Whisk powdered sugar and fresh lemon juice until smooth. Drizzle over cooled loaf before slicing, if desired.