01 -
Preheat your oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
02 -
In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth. Add the eggs, lemon zest, lemon juice, and vanilla extract. Whisk until fully combined.
03 -
In a separate bowl, whisk together the flour, baking powder, salt, and poppy seeds.
04 -
Gradually add the dry ingredients to the wet mixture, stirring until just combined. Do not overmix.
05 -
Pour the batter into the prepared pan and spread evenly. Bake for 22-28 minutes, or until a toothpick inserted in the center comes out clean.
06 -
Let the bars cool completely in the pan before adding the glaze.
07 -
In a small bowl, whisk together powdered sugar, lemon juice, vanilla extract, and lemon zest until smooth.
08 -
Drizzle or spread the glaze over the cooled bars. Let it set for about 15 minutes before slicing.
09 -
Cut into squares and enjoy your tangy, sweet treat!