To make the dressing, combine the egg and dill in the bowl of a food processor and process on high speed for 15 seconds. With the machine running, add the oil in a thin stream and process until it forms an emulsion. Transfer to a bowl and whisk in the buttermilk, lemon juice, salt, and pepper.
Yield: 2 1/2 cups
*RAW EGG WARNING
The American Egg Board states: "There have been warnings against consuming raw or lightly cooked eggs on the grounds that the egg may be contaminated with Salmonella, a bacteria responsible for a type of foodborne illness. Healthy people need to remember that there is a very small risk and treat eggs and other raw animal foods accordingly. Use only properly refrigerated, clean, sound-shelled, fresh, grade AA or A eggs. Avoid mixing yolks and whites with the shell…"