01 - Preheat oven to 350°F (175°C). Grease a 9x5-inch loaf pan and line with parchment paper for easy removal.
02 - Whisk together flour, baking powder, baking soda, salt, poppy seeds, and lemon zest in a medium bowl until evenly distributed.
03 - In a large bowl, blend ricotta cheese and sugar until smooth. Add eggs one at a time, whisking after each addition. Incorporate vegetable oil, lemon juice, and vanilla extract until well combined.
04 - Gradually stir the dry ingredients into the wet mixture, being careful not to overmix. Mix just until the flour is incorporated.
05 - Transfer batter into the prepared pan and smooth the top. Bake in the center of the oven for 50–60 minutes, or until a toothpick inserted in the center comes out clean.
06 - Allow loaf to cool in the pan for 15 minutes, then transfer to a wire rack to cool completely before glazing.
07 - Whisk powdered sugar with lemon juice until smooth and pourable. Drizzle over cooled loaf, letting glaze drip over the edges.