Preheat the oven to 165C Fan. Pop 12 cupcake cases into the holes of a muffin tray.
In a large mixing bowl, add the margarine, caster sugar, self-raising flour, eggs, and the zest of the lemon.
Beat it with an electric whisk until it’s well combined and you have a smooth cake batter.
Divide the mixture between the 12 cake cases. Bake them for 20-22 minutes or until a skewer comes out clean.
Use a fork to poke holes into each cake.
For the drizzle, mix the caster sugar with the juice of 2 lemons. Spoon the mixture over each cake whilst they are still warm. The juice will sink into the cakes and the sugar will leave a crisp topping.
Leave them to cool completely before eating. Enjoy!