I only have large eggs. How important is finding XL eggs for this and similar recipes?

Hi. Yes, I believe a large egg can be used since this recipe only calls for one. The difference between a large and xlarge egg is minimal. This may be more of an issue for a recipe that calls for several xlarge eggs.

Unless you are a real rabid baking fanatic, the difference between a large and extra large egg isn't usually enough to radically alter the outcome of a recipe. Eggs are graded according to weight, and there is only about 1/3 ounce between eggs of those two sizes. The majority of time, you will just not notice any difference at all. Industry standards use a large egg in recipes as a rule, and for professional purposes eggs are generally measured by cups or weight, due to the whole "small, medium, large" scale bit.

How did I miss this recipe? Thank you for mentioning it. I wish it had been tested with standard large eggs, but I think you can safely use a large egg here. Just start checking the cake for doneness at 25 minutes or so.