Preheat the oven to 375°F.
In a medium-sized mixing bowl, mix butter and white sugar.
Add the egg and continue to mix until combined.
Stir in the lemon zest.
Combine flour and baking powder and add it in batches to the wet ingredients until fully mixed.
Take about 2 teaspoons of the dough and shape it into a ball in your hands.
Place onto a parchment paper-lined cookie sheet and flatten just a little.
Bake for 8 minutes then remove from oven.
After a few minutes, transfer to a wire cooling rack. Cookies will need to be completely cooled before glazing.
In a small mixing bowl add the confectioner’s sugar, lemon juice, and cream then stir until combined.
Spoon a little onto each cookie, spreading toward the edges.TIP: The glaze will take about 15 minutes to set before eating.
Decorate with a bit of lemon zest.