"Easy and tasty, but I made some modifications and it took 25 minutes to thicken. First, I didn't need a pint of curd so I used 3 yolks, 4.2 oz. of sugar, 1/5 C lemon juice- not fresh (and since I didn't have any lemons I kicked it up a bit by adding a half tsp of lemon extract). Second- like some other reviewers experienced it took a lot longer to thicken. Finally, I remembered that some thought it was too sweet, and didn't need as much butter. I cut up 4.8 Tbs of butter and started taste testing the curd with about 1 T left. Once I started tasting more butter than lemon I stopped adding more. I'm sure fresh lemons are better- but it works fine if you don't have any.