Grapefruit Curd

i'm still not a 100% on what curd is.. but it looks like fruity pudding. so it's all good by me :)

FROM HONEY & JAM (HoneyandJam.blogspot.com)
8 large eggs yolks
1/2 cup freshly squeezed ruby red grapefruit juice
1/2 cup +2tbsps freshly squeezed lemon juice
finely grated zest of 1 ruby red grapefruit
1cup sugar
1/8tsp salt
1 1/4sticks unsalted butter, cold, cut into pieces
Directions:
1) Combine yolks, grapefruit juice, lemon juice, half of the zest, & the sugar in a saucepan; whisk to combine.
2) Cook over medium-high heat, stirring constantly with a wooden spoon (be sure to scrape the sides of the pan), until the mixture is thick enough to coat the back of the spoon, 8-10 min. Remove saucepan from heat.
3) Add salt & butter, one piece at a time, stirring until smooth. Strain through a fine sieve unto a medium bowl.
4) Stir in the remaining zest. Cover with plastic wrap, pressing it directly onto the surface of the curd to prevent a skin from forming. Refrigerate until chilled & set.

http://honeyandjam.blogspot.com/2009/01/grapefruit-curd.html