Original: '' Conch Cooking '' L.P. Artman , Jr. , August 1975 Florida Keys Printing & Publishing , page 74 The dish is named after the small key limes ( Citrus aurantifolia ` Swingle ' ) that are naturalized throughout the Florida Keys .
Simplified: Many early recipes for key lime pie did not instruct the cook to ever bake the pie , because they depended on this reaction to make the filling thick .