In a small bowl, combine chicken fat, eggs, matzo meal, and salt. Add the water and the dill; mix until just combined. Cover with plastic wrap, and chill for 15 minutes.
Bring a medium saucepan of water to a boil. Reduce heat to medium, and drop 1-inch balls of chilled matzo mixture into water. Cover, and cook for 35 minutes. Remove with a slotted spoon. The matzo balls may be prepared in advance and stored refrigerated in an airtight container for up to 3 days.