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The Glintstone Craftsman's Cookbook 3 is one of the many Key Items found throughout Elden Ring, found at the Highway Lookout Tower in East Liurnia.
The Glintstone Craftsman's Cookbook 3 is a Key Item Recipe Book that will unlock extra crafting recipes once you have obtained it.
This includes the following recipes:
This item can be found at the Highway Lookout Tower in East Liurnia, overlooking the highway where soldiers battle summoned undead.