First, on Kingdom Hearts II
you must make sure you have a high enough moogle level to use energy materials. The reason being is that you need it to halve the materials you need to make items so you can only need seven orichacum+ (all there are in the game). Next, you need to get the materials if you haven't already.
Materials
7 Orichalcum+:
- Clear 100 acre wood
- Clear Atlantica
- The small chest in The World That Never Was(twtnw) next to the big chest in The Brink of despair area.
- Clear the goddess of fate cup in Olympus Coliseum
- Chest in twilight town in sunset terrace jump onto the moving train then go up one of the buildings. Search it until you find it.
- Chest in space paranoid (second visit) just before you fight the commander sark and the MPC.
- Collect every type of all materials (shard, stone, gem, crystal) and give it to the moogle.
Other materials:
- Energy crystal-get from book masters in hollow bastion near Merlin's house.
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Twilight and Dense crystal- get from nobodies on naught skyway in twtnw.
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Serenity Crystal-nobody assassins in twtnw.
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Mythril Crystals-random item chests
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Regular Orichalcum-random item chests
Item/needed
- Orichalcum+:7
-
Orichacum: 3
-
Energy crystal: 1
-
Twilight crystal: 1
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Dense crystal: 1
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Mythril crystal: 1
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Serenity crysal: 1
Note: the recipe is in the mansion in twilight town where the pods for Donald and Goofy are.