Preheat the oven to 180ºC, gas 4.

In a mixing bowl, beat up eggs, flour, caster sugar, butter, baking powder, lemon juice and lemon zest together until smooth in a large mixing bowl and turn into the prepared tin.

Bake in the pre-heated oven for about 25-35 mins, or until golden brown, shrinking away from the sides of the tin and springy to the touch.

While the cake is still warm, make the lemon drizzle topping. Mix together the sugar and lemon juice, pour over on warm cake.

Leave it to cool down a little and loosen the sides of the cake, then lift the cake out of the tin.