Dark chocolate sauce (with variations)

1. Bring to boil and boil together, covered, for 1 to 2 min. , water, sugar and corn syrup.
2. Remove from heat and sift in cocoa powder, beating until smooth--add vanilla.
3. Straini into jar for storage, or use warm.
4. Keeps long in "fridge.
5. Mochai sauce: replace half water w/half strong coffee chocolate-mint sauce: replace vanilla with peppermint extract to taste chocolate-orange sauce: omit vnilla.
6. Whiski in orange-flavor liquer to taste.
7. Yield: abt.
8. 2 cups.