01 - Preheat oven to 350°F. Grease a 9x5-inch loaf pan and line with parchment paper.
02 - Whisk together flour, baking powder, baking soda, and salt in a large bowl.
03 - In a separate bowl, beat Greek yogurt, granulated sugar, eggs, oil, lemon zest, lemon juice, and vanilla until smooth.
04 - Fold wet ingredients into dry ingredients until just combined. Avoid overmixing.
05 - Transfer batter to prepared pan and smooth top. Bake for 45-55 minutes until toothpick inserted in center comes out clean.
06 - Let cake cool in pan for 10 minutes, then remove to wire rack to cool completely.
07 - Whisk powdered sugar with enough lemon juice to achieve thick but pourable consistency.
08 - Drizzle glaze over cooled loaf. Slice into 10 pieces and serve.