01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan and line with parchment paper.
02 - Whisk together flour, baking powder, and salt in a medium bowl. Set aside.
03 - Whisk sugar, eggs, yogurt, vegetable oil, lemon zest, lemon juice, and vanilla extract in a large bowl until smooth.
04 - Gradually fold dry ingredients into wet mixture until just combined. Avoid overmixing to maintain tender texture.
05 - Toss blueberries with 1 tablespoon flour, then gently fold into batter to distribute evenly.
06 - Pour batter into prepared loaf pan and smooth top with spatula.
07 - Bake for 50-55 minutes until toothpick inserted in center comes out clean.
08 - Let loaf cool in pan for 15 minutes, then remove and transfer to wire rack to cool completely.
09 - Whisk powdered sugar and lemon juice until smooth and drizzle consistency.
10 - Drizzle glaze over cooled loaf. Allow glaze to set before slicing and serving.