I have not had a problem with Teninas recipe, however as we have Meyer lemons i have developed a recipe for these. (posted). M Saver, if the mix tastes Lemony enough it maybe the size of the eggs, they may be too small. You could either thicken it with cornflour , or custard powder, or add another egg yolk. If it tastes not strong enough , add more lemon juice, but this will not thicken it.