Source: So This Is Kosher by Ann Kaye and Hetty Rance, 1986
Heat water and margarine in saucepan until fat melts. Bring to a boil then remove from heat.
Sift together matzo meal and salt. Add slowly to liquid, then beat well. Return to gentle heat and continue to beat until dough is smooth and leaves sides of pan clean. Remove from heat, cool slightly, then beat in eggs, one at a time. Continue to beat until very smooth and shiny.