Can't find coconut cream? Usually you can refrigerate a can of full-fat coconut milk overnight and then the cream will be solid on the top. However, sometimes AIP-friendly coconut milk (aka, the type without guar gum) doesn't solidify, so you can try using coconut milk mixed with a bit of palm shortening to create a creamy consistency instead. Or just use coconut milk and it'll be pretty thin, more like a salad dressing rather than a creamy, traditional-style Tzatziki sauce.