Preheat oven to 350°F (175°C). Line a 9x5-inch loaf pan with parchment paper.
In a medium bowl, whisk flour, almond flour, poppy seeds, baking powder, baking soda, and salt.
In a large bowl, whisk eggs. Add yogurt, maple syrup, oil, lemon juice, zest, and vanilla. Stir until smooth.
Slowly fold dry ingredients into wet mixture. Don’t overmix.
Pour batter into the pan. Bake 45–55 minutes, until a toothpick comes out clean.
Cool for 10 minutes in the pan, then move to a wire rack.
If making glaze, mix powdered sugar, lemon juice, and almond milk until smooth. Drizzle over cooled loaf