Large eggs vs. extra large eggs? It's a question that puzzles many home cooks. Good. Food. Stories. has easy answers and quick recipe substitutions.
Large Vs. Extra Large Eggs: Does The Difference Really Matter?
Different Sizes of Eggs, A Guide
Smith's Quality Large Eggs – Manhattan Milk
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Substituting for Large Eggs in Baking « Savory Palate Blog
Is there any real purpose to medium or extra large eggs? - Quora
Extra Large Eggs
Large Eggs vs. Extra Large Eggs
Large Eggs, 18 pack