Preheat your oven to 350°F (180°C). Grease and line a 9x5 inch loaf pan with baking paper.
In a large mixing bowl, cream together the butter and sugar until light and fluffy. About 2-3 minutes.
1/2 lb butter, 1/2 lb sugar
Beat in the eggs one at a time.
4 eggs, 2 tsp lemon zest
Gradually add the self-raising flour to the wet ingredients, mixing until just combined.
1/2 lb self-raising flour
Fold in the lemon zest and juice by hand using a large spoon or spatula.
2 tsp lemon zest, 6 tbsp lemon juice
Pour the batter into the prepared pan and bake for 40 minutes, or until a toothpick inserted into the center comes out clean.
Let the cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
Dust with powdered sugar before serving (optional).
2 tsp powdered sugar
Notes
Light and fluffy: Make sure the wet ingredients are light and fluffy before adding in the flour.Wash the lemons: Make sure to thoroughly wash and dry the lemons before zesting them.Don't overmix: Once you add the fresh lemon juice and zest, make sure not to overmix the cake batter or the cake will be dense.