01 -
Melt the butter in the microwave or in a small saucepan over low-medium heat until just melted. Avoid bubbling to retain the liquid. Pour the melted butter into a large mixing bowl and cool in the fridge to room temperature, about 20 minutes.
02 -
In a bowl, combine granulated sugar and lemon zest. Rub together until the mixture resembles wet sand to release the lemon flavor.
03 -
Once butter is cooled, add the lemon sugar and mix with a rubber spatula or stand mixer for 1 minute. Add the egg and vanilla extract and mix until combined.
04 -
In a separate bowl, mix flour, baking powder, baking soda, poppy seeds, and salt. Gradually add the dry ingredients to the wet ingredients and mix until combined.
05 -
Using a 2 tbsp (53 g) cookie scoop, scoop 11 portions, roll them into balls, and place on a tray lined with baking paper. Refrigerate the cookie dough for 30 minutes.
06 -
Preheat the oven to 180ºC (355ºF). Place 6 cookies on a lined baking sheet. Bake one batch at a time for 10-11 minutes. Let cookies cool on the baking tray for 3 minutes before transferring to a cooling rack.
07 -
In a medium bowl or stand mixer, whisk cream cheese, vanilla extract, powdered sugar, agave or honey, and heavy cream until stiff peaks form. Refrigerate if making ahead.
08 -
Using a piping bag with a Wilton 2A tip, pipe frosting onto cooled cookies in a swirl from the center outward. Sprinkle with poppy seeds and decorate with lemon slices or zest if desired.