Cream together the sugar and butter in a large bowl for about two minutes until light and fluffy. 1 1/2 cups granulated sugar, 1 cup unsalted butter
Add in the eggs, lemon juice, lemon zest, and vanilla extract and stir together until combined. (Add in the food coloring if using). 1 large egg, 3 TBS fresh lemon juice, 1 TBS fresh lemon zest, 1 tsp vanilla extract, 3-4 drops yellow food coloring
Add in the flour, baking powder, baking soda and salt. Stir till You have a nice soft dough. 3 cups all purpose flour, 1 tsp baking powder, 1/2 tsp baking soda, 1/2 tsp salt
Stir in the poppy seeds. 1 TBS poppy seeds
Place the cookie dough in the fridge to chill while you preheat the oven to 350 degrees Fahrenheit, about 15 minutes. Line a cookie sheet with parchment paper.
Scoop the dough into 1 1/2 TBS sized scoops and roll into balls. ( I measure them out to be between 32 and 35g of cookie dough each).
Place the cookies at least 2 inches apart on the prepared cookie sheet.
Bake in the preheated oven for 9-11 minutes, or until the cookie tops are crackly and no longer shiny. They may look a little under done.
Allow cookies to cool on cookie sheet for 5 minutes then remove to a cooling rack to continue cooling.