Salt Crystals are caught by fishing in the Everafter biome, but they can only be obtained by fishing outside of pools.
Obtaining a full stack of Salt Crystals can be time-consuming, so it's advised to bring a fishing partner to increase your yield.
Although Salt Crystals share a spawn location with fish, persistence in fishing will eventually yield the required amount for cooking.
Several meals in The Storybook Vale require Salt Crystals, including A Very Unusual Tea-Time and Aquatic Escargot.
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