When was the last time you cracked an egg open and found two bright yellow yolks instead of one? Were you excited that it may mean a larger meal or worried that it may have some side effects? Well, it might be a little awkward if the original plan was to make “sunny side up” because now you get to have two large suns in your sky! But hey, that’s such a bright day to look forward to, right?
Certain people get worried about the slightest abnormality in their meals but this time, you shouldn’t because eggs with two yolks are perfectly safe and in fact, they’re often said to bring good fortune. But I’m sure you’re still curious as to why some eggs get an extra yolk and what that could mean for your meal (besides just having two suns).
Eggs are formed in the reproductive system of a hen, known as the oviduct. Every day, a yolk is released from the hen’s ovary and within twenty-six hours, it is turned into an egg as it passes through the structure. Young hens, who haven’t fully settled into a laying cycle, may sometimes release two yolks simultaneously resulting in your ‘double sunny day’. In other cases, a yolk will get stuck in the oviduct until the next day when a new yolk pushes it through – forming a double yolk.
Now let’s talk a little about the nutritional value of having double yolks in one egg. Remember that the yolk of an egg serves as a sort of nutrient goldmine. It has thirteen essential vitamins and minerals, as well as up to 40% of the egg’s high-quality protein. Could this imply that a double yolk means double nutrients? Well, not really. Most of the time, each of the yolks in an egg with a double are smaller than a fully formed single yolk. While the exact nutritional profile of double yolk eggs may vary slightly, it is likely similar to that of a jumbo egg. If egg retailers could see the number of yolks within each shell, eggs with double yolks would probably come at a special price.
So, what happens if you come across a double yolk when baking or cooking? While double yolk eggs are usually the same size as the other eggs in the carton, they may have a higher yolk to white ratio. This shouldn’t be a problem for most dishes. However, a double yolk can cause problems in baking, where the ratio of fat and sugar needs to be carefully measured. If you’re worried about the amount of fat in a double yolk, try comparing it to yolks in other eggs in your carton to see if it’s similar in size.
What would you do with your next double yolk egg? My advice is to prepare a lovely sunny side up and enjoy both yolks in their fullness as you look forward to a day filled with lots of luck. Now when next you crack an egg open, watch out for a surprise, you just might get lucky!