How to Make Egg and Onion Schmaltz Spread

A Brooklyn kitchen classic: golden schmaltz, caramelized onion, and hard-boiled egg, mashed into a spread that turns leftover chicken fat into the best thing on your challah.

We render schmaltz at the shop almost every day, and this is the recipe our regulars ask us for more than any other. It started as a way to use up the fat and gribenes left over from a batch of chicken, and it's turned into one of our most requested items around Shabbos and shiva calls alike. If you've ever rendered a batch of schmaltz and wondered what to do with it besides frying eggs, this is the answer.

Egg and onion spread, sometimes called "poor man's chopped liver," is a two-ingredient trick that's been on Ashkenazi Shabbos tables for generations: hard-boiled eggs, sweet sautéed onion, and just enough schmaltz to bring it all together into something rich, savory, and impossible to stop eating with a spoon.

It takes about 20 minutes, needs no special equipment, and is a great way to use up schmaltz and gribenes you already have in the fridge.

Why This Recipe Works

Schmaltz does two jobs here. It carries the deep, savory flavor that plain mayonnaise or oil can't replicate, and it's what gives the spread its soft, scoopable texture once it's chilled. Caramelizing the onions low and slow is the other non-negotiable step. Rushed onions taste sharp; patient onions taste sweet and almost meaty, which is what makes this spread taste like more than the sum of its parts. In our own kitchen, we've found the difference between a 10-minute onion and a 25-minute onion is the difference between a spread that's good and one that people ask you to make again.

Ingredients

• 6 large eggs, hard-boiled and peeled
• 1 large onion, diced small
• 3 to 4 tablespoons schmaltz (rendered chicken fat), divided
• 1/2 teaspoon kosher salt, plus more to taste
• 1/4 teaspoon black pepper
• Optional: a handful of gribenes (crispy schmaltz cracklings), roughly chopped, for topping or mixing in
• Optional: 1 tablespoon minced fresh chives or scallion, for serving

Instructions

1. Caramelize the onion. Heat 2 tablespoons of schmaltz in a skillet over medium-low heat. Add the diced onion and a pinch of salt. Cook slowly, stirring occasionally, for 20 to 25 minutes, until the onion turns deep golden brown and smells sweet. Don't rush this part; low heat is what makes the flavor.
2. Mash the eggs. While the onion cooks, mash the hard-boiled eggs with a fork or pastry cutter in a mixing bowl until they're broken into small, even crumbles, not a paste.
3. Combine. Add the caramelized onion (with any schmaltz left in the pan) to the mashed eggs. Add the remaining 1 to 2 tablespoons of schmaltz, the salt, and the pepper. Mix well with a fork until the spread holds together but still has texture.
4. Adjust and taste. Add a touch more schmaltz if the mixture looks dry, or more salt if it needs it. Fold in chopped gribenes here if you're using them; they add a crunchy bite that's hard to beat.
5. Chill and serve. Cover and refrigerate for at least 30 minutes before serving; the spread firms up and the flavors settle as it chills. Serve on challah, rye bread, or crackers, topped with a few extra gribenes and a sprinkle of chives.

Makes: about 2 cups | Prep time: 10 minutes | Cook time: 20 minutes | Total time: 30 minutes, plus chilling

Notes from the Butcher Counter

A customer once told us she'd been making this since she was a girl in her mother's kitchen in Williamsburg, using whatever schmaltz was left in the jar after Shabbos. That's really the spirit of this recipe: it was never meant to be exact, and it was never meant to be fancy. It was meant to make sure nothing good went to waste. We still make it that way at the shop, with schmaltz rendered fresh that week and gribenes saved from the same batch.

Tips for the Best Egg and Onion Schmaltz Spread

• Use schmaltz you trust. Since schmaltz is most of the flavor here, starting with a well-rendered, fresh batch makes a real difference; this isn't the place for fat that's been sitting in the freezer for a year.
• Don't over-process it. This spread is meant to be a little chunky. If you blend it smooth in a food processor, you'll end up with something closer to a pâté than the traditional coarse, spoonable texture.
• Make it ahead. It keeps well in the fridge for up to 4 days, which makes it an easy make-ahead addition to a Shabbos spread or a shiva platter.
• Short on time? Thinly sliced onion cooked at slightly higher heat for 12 to 15 minutes will still caramelize, just with a little less depth than the slow method.

Frequently Asked Questions

What is egg and onion schmaltz spread?

It's a classic Ashkenazi Jewish spread made from mashed hard-boiled eggs, caramelized onions, and schmaltz (rendered chicken fat), mixed together until creamy but still textured. It's often served as an appetizer or a challah topping alongside dishes like chopped liver.

Can I use gribenes in this recipe?

Yes, chopped gribenes (crispy schmaltz cracklings) are a traditional add-in. Fold them in at the end so they keep their crunch instead of softening in the mixture.

How long does egg and onion spread last in the fridge?

Stored in an airtight container, it keeps for 3 to 4 days. It doesn't freeze well because the texture of the egg changes once thawed.

Is this the same as chopped liver?

No, they're often served side by side, but chopped liver is made from cooked chicken liver, while egg and onion spread has no liver at all. It's sometimes called "poultry-free chopped liver" for that reason, and it's a good option for anyone who wants that same savory, schmaltz-forward flavor without the liver. For more inspiration, see our guide on perfect homemade sautéed liver.