01 - Preheat oven to 350°F and grease a 9 x 5-inch loaf pan.
02 - In a large bowl, whisk flour, baking powder, baking soda, salt, and poppy seeds until evenly combined.
03 - In a separate bowl, blend granulated sugar and lemon zest, rubbing together with fingertips to release essential oils.
04 - Whisk in eggs, ricotta cheese, vegetable oil, lemon juice, and vanilla extract until mixture is thoroughly incorporated.
05 - Gradually add the dry ingredients to the wet mixture, stirring until just combined with no dry streaks remaining.
06 - Pour batter into prepared loaf pan and smooth the top with a spatula.
07 - Bake for 50-60 minutes, or until a toothpick inserted in the center emerges clean.
08 - Allow loaf to cool in pan for 15 minutes, then transfer to a wire rack to cool completely before slicing.