Lemon Curd

Step 1

Whisk the sugar, eggs, corn syrup and lemon juice together in a medium heavy-bottomed saucepan. Drop in the pieces of butter.

Step 2

Put the saucepan over medium heat and start whisking. You want to get into the corners of the pan, so if your whisk is too big for the job, switch to a wooden or silicone spatula. Cook, continuing to whisk — don’t stop — for 6 to 8 minutes, until the curd starts to thicken. When it is noticeably thickened and, most important, you see a bubble or two come to the surface, stop; the curd is ready.

Step 3

Immediately scrape the curd into a heatproof bowl or canning jar or two. Press a piece of plastic wrap against the surface to create an airtight seal and let the curd cool to room temperature, then refrigerate.