Then when Fingon heard afar the great trumpet of Turgon his brother, the shadow passed and his heart was uplifted, and he shouted aloud: 'Utủlie'n aurë! Aiya Eldalië ar Atanatári , utủlie'n aurë! The day has come! Behold, people of the Eldar and Fathers of Men, the day has come!' And all those who heard his great voice echo in the hills answered crying: 'Auta i lómë! The night is passing!' -From the Silmarillion.
My guess is that it's the same recipe but instead of the ram horn, you need an addlegoat horn. Aren't those the really big ones that are too hard to kill for most people at this point? It would explain why you can't find one.
Minecraft : My anti-MMO Terraria : My anti-Minecraft