Get the Oven Ready: Preheat your oven to 350°F (180°C). Grease and line an 8-inch (20 cm) round cake pan with parchment paper.

Make the Cake Batter: In a large mixing bowl, beat the butter and sugar together until the mixture is light and fluffy. Incorporate the eggs one at a time, mixing thoroughly after each addition.

Add Lemon and Dry Ingredients: Stir in the lemon zest and juice. In another bowl, combine the flour and baking powder by sifting them together. Gradually fold the dry ingredients into the wet mixture until everything is well incorporated.

Bake the Cake: Transfer the batter into the prepared cake pan, smoothing out the top. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.

Prepare the Topping: While the cake is baking, mix together the lemon curd and lemon juice in a small bowl until smooth.

Add the Topping: Once the cake is done, remove it from the oven and let it cool for about 10 minutes. While still warm, poke small holes in the cake with a fork or skewer, then pour the lemon curd mixture over the top, allowing it to seep into the cake and create a sticky glaze.

Serve: Let the cake cool completely, then slice and serve. Enjoy it on its own or with a dollop of whipped cream for an extra treat!