A few months ago, I experimented slow-poaching an egg in an attempt to create a near uniform consistency between yolk and egg white. When you fry an egg, the white tends to seize up faster than the yolk... thus, the sunny side up egg. If, instead, you slow poach it for an hour at 140 degrees, the white and the yolk cook and thicken at closer to the same rate. Get it just right and you end up with a fully cooked egg whose white and yolk walk the fine line between liquid and solid... the yolk ends up becoming unctuously viscous, and a hidden intrinsic sweetness emerges.
I love the taste of poached eggs with asparagus...
But an hour is a long time to wait for an egg to slow poach to the right consistency. What happens if you separate the yolk from the white and cook it gently sous vide? I put the separated egg yolk in a ziploc bag and placed it in the same 140 degree water bath as the slow poaching egg for a very rudimentary sous vide system. In 15 minutes, the yolk reached the desired consistency. In addition to saving time, cooking the egg yolk sous vide opens up the opportunity to flavor the egg with herbs, salt, pepper, oil, or anything else while it cooks in the bag.
Shaved wok-fired asparagus with sous vide egg, quinoa, toasted almonds and pecorino:
Not sure which method I like better yet... but it's nice to have options.
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