This tangerine version is sweeter than lemon (although we did cut down on the sugar) and depends heavily on how good your fruit is. If oranges or clementines are more flavorful right now, by all means use those instead.
Tangerine (or Clementine or Orange) Curd
adapted from Martha Stewart
makes 3/4 cup
3 egg yolks
1 teaspoon tangerine zest (about half of a tangerine)
1/4 cup tangerine juice (about one large tangerine)
5 tablespoons sugar
3 tablespoons unsalted butter, cold and cut into small pieces
Whisk together the yolks, zest, juice, and sugar in a small sauce pan. Cook over medium-low heat for about 5 minutes, stirring constantly, until the mixture thickens and coats the back of a wooden spoon.
Remove from heat. If you see any small bits of egg that have scrambled, strain the curd through a fine mesh strainer into a bowl. This is also helpful if you simply want a smoother curd with no zest. If not, proceed directly to the next step.
Whisk in the butter, a few pieces at a time, until incorporated. Add the tiniest pinch of salt, if you want. We liked the edge it gave our curd, but it's optional. Spread right away on toast or chill for a few hours, until more firm. Store in the refrigerator.
(Image: Elizabeth Passarella)