Answer: yolks

AnswerCrossword Clue
YOLKS

They're surrounded by whites

YOLKS

Mayo ingredients

YOLKS

Egg parts

YOLKS
Omelet maker's discards, perhaps
YOLKS
The "sun" in sunny-side-up eggs
YOLKSYellows
YOLKSFood sources for embryos
YOLKSCholesterol-laden parts of eggs
YOLKSEgg centers
YOLKSWhat an egg-white omelet lacks
YOLKSParts of eggs
YOLKSOmelet ingredients
YOLKSWhite omelet's lack
YOLKSThey're used to make hollandaise sauce
YOLKSThey're used to make zabaglione
YOLKSIngredient of zabaglione.
YOLKSEssential parts.
YOLKSCake ingredients.
YOLKSInnermost parts.
YOLKSEgg yellows
YOLKSEgg innards
YOLKSYellow parts
YOLKS"Sunny" egg parts
YOLKSWhites' counterparts
YOLKSThey provide richness in batter
YOLKS"The ... on you!" (classic gag line)
YOLKSThey may be sunny-side up
YOLKSEggs' contents
YOLKSFuture embryos
YOLKSCholesterol part of eggs
YOLKSCholesterol-rich egg parts
YOLKSThey're enveloped in white
YOLKSThe "suns" in sunny-side-up eggs