Preheat the oven to 175ºC. Grease and line a 2lb loaf tin.
In the mixing bowl of a stand mixer (or large bowl, if you don't have a stand mixer), cream together the Stork/butter and sugar until light and fluffy.
Crack the eggs in another bowl or jug and add them to the mix, one by one. Mix until well incorporated. Add the lemon extract, zest and juice.
Add the flour and mix until just incorporated - don't overmix. Remove one third of the cake mix and add to another bowl with the raspberry coulis. Fold together gently. Alternate between the two mixes, adding them both to the cake tin.
Bake the cake for 40-45 minutes, checking after 40 minutes to make sure it's not too brown on top. If it starts to brown too much, pop some foil over the top of it to protect it. You'll know when the cake is cooked as a skewer will come out clean.
When the cake is baked, remove from the oven and leave to cool in its tin for 5-10 minutes. Turn out from the tin and leave to cool completely on a wire rack before adding the glaze.