Shared by Alison Roman

"The key to good matzo brei lies in two things: very seasoned, very caramelized onions; and properly soaked matzo boards. Not enough soaking and it’ll be dry; too much, and it’ll feel bland and waterlogged. It may take you a few tries to see what I mean. It is, after all, an art," explains Alison Roman in her book "Dining In: Highly Cookable Recipes."
Read more about her family in "Alison Roman’s Family Brunch: Gravlax + Matzo Brei" and try her recipe for Scotch gravlax. Plus, find more Passover recipes here.
Melt the butter in a large skillet over medium heat. Add the onion and season with salt and pepper. Cook, stirring occasionally, until the onions have caramelized and softened completely, about 15 minutes. Remove from the heat and set aside.
Soak the matzo in a large bowl of warm water for a few seconds to soften. Drain the matzo in a colander.
Beat the eggs in a large bowl, and season with salt and pepper. Add the soaked matzo with a spatula stir to combine. Let the mixture sit for 2-3 minutes.
Return the skillet to medium-low heat, add the matzo mixture to the caramelized onions, and season again with salt and pepper. Cook, scraping the bottom of the skillet occasionally, almost like you’re making a soft scramble. Cook until the eggs are just set, about 3-5 minutes, then remove the skillet from the heat.
Transfer the matzo brei to a large bowl (or serve straight from the skillet) and serve with plenty of sour cream and applesauce. Store matzo brei in an airtight container in the refrigerator for 2 days.