J. Kenji López-Alt's Simple Technique for Sweet, Never Funky Roasted Brussels Sprouts

A last-minute drizzle of balsamic vinegar adds a tart glaze to these crispy sprouts.

By
J. Kenji López-Alt
Kenji Lopez Alt
Culinary Consultant
Kenji is the former culinary director for Serious Eats and a current culinary consultant for the site. He is also a New York Times food columnist and the author of The Food Lab: Better Home Cooking Through Science.
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Updated September 17, 2024
Roasted brussel sprouts and shallots with a balsamic glaze in a bowl, with glasses of sparkling water, some smaller plates and a colorfully printed table top

Serious Eats / Morgan Hunt Glaze

Why It Works

  • Extremely high heat, plus a preheated roasting pan, gives the Brussels sprouts sweet flavor and a nutty char.
  • Balsamic vinegar provides a tart counterpoint to the deeply browned sprouts.

When I first wrote about the humble Brussels sprout, it was from the perspective of someone who believed that I was amongst the minority of people who truly deeply love the tiny brassica.

From the number of positive comments that piece received and the amount of support I've seen lent to the diminutive cabbage-shaped vegetable, it turns out I was wrong all along.

What we've got here is a sprout with some clout. From topping our favorite pizzas to appearing on the menus at many of our favorite restaurants, good Brussels sprouts are everywhere.

Tray of sliced raw Brussels sprouts and shallots

Serious Eats / Jessica Leibowitz

The Key to Great Brussels Sprouts

Coming from a family of Brussels sprouts lovers, I've had to develop quite a repertoire of recipes over the years and over the holidays in order to keep things interesting. The vast majority of them—a good 94% (I've counted)—share one crucial step: searing. Slow-cooking Brussels sprouts allows them to develop those funky, odoriferous compounds you get from overcooked cabbage soup while at the same time destroying the beautiful, spicy-pungent, mustard-like compounds they contain. To avoid that fate, you need to cook them fast, and cook them hard so they char and caramelize, their leaves turning crispy, brown, and nutty, and their natural sugars breaking down into sweeter simple sugars.

Roasting in the Oven

This means you want to use the highest heat possible when cooking your sprouts. This can be accomplished easily in a skillet, but if you want to free up some stovetop space this Thanksgiving, you can just as easily do it in a pan in the oven. The key is to preheat the pan in the oven before you add the sprouts to it so that they begin to sizzle as soon as they land.

Pile of seared Brussels sprouts and crispy shallots

Serious Eats / Jessica Leibowitz

I like to add a handful of sliced shallots to the sprouts to accent their sweetness. The shallots brown and crisp, melting into the mix without overpowering the sprouts. You can incorporate some pork fat into the mix (just render some bacon, fatback, guanciale, chorizo—whatever—on the stovetop, toss the sprouts with the fat, then add the crisped bits back in at the end), but other fats will work just as well. Olive oil, duck fat, chicken fat, or turkey fat are all fine options.

If your pan is preheated hot enough and your oven is going strong, your sprouts should be out of the oven and ready to serve in less time than it takes to rest a turkey.

Adding a Bit of Acid

Want a touch more acidity and kick in there? Sprinkle a bit of balsamic vinegar over the sprouts just as they come out of the oven. The residual heat in the pan should be enough to reduce it almost instantly to a thin coating of tart glaze.

And yes, the secret ingredient here is salt, and plenty of it.

This recipe has been cross tested and updated for best results in September, 2024. The shallots are added after the Brussel sprouts have roasted for 10 minutes.

Recipe Details

J. Kenji López-Alt's Simple Technique for Sweet, Never Funky Roasted Brussels Sprouts

Prep 10 mins
Cook 20 mins
Total 30 mins
Serves 8 to 12 servings

Ingredients

  • 3 pounds (1.4kg) Brussels sprouts, bottoms trimmed, outer leaves removed, cut in half (see notes)

  • 1/4 cup (60ml) extra-virgin olive oil, divided (see notes)

  • Kosher salt and freshly ground black pepper

  • 8 medium shallots, sliced thinly

  • 2 tablespoons (30ml) balsamic vinegar or aged sherry vinegar

Directions

  1. Adjust oven racks to upper and lower middle positions and place a rimmed baking sheet on each rack. Preheat oven with sheets to 500°F.

  2. In a large bowl, add sprouts, 3 tablespoons of the olive oil, and salt and pepper to taste and toss to combine. Once the oven has reached temperature, working quickly, remove the baking sheets with a dish towel or oven mitt and divide Brussels sprouts mixture evenly between both trays, shaking sheets to distribute into a single even layer. Return pans to the oven. Roast for 10 minutes. While Brussel sprouts roast, in the now-empty bowl, toss shallots, remaining 1 tablespoon olive oil, and salt and pepper to taste to combine.

    Overhead view of brussel sprouts prepared and on a sheet

    Serious Eats / Morgan Hunt Glaze

  3. Working quickly and carefully, divide the shallot mixture evenly between the two sheets and stir with the Brussel sprouts to combine. Rotate and swap pans top to bottom in oven. Continue to bake until Brussels sprouts are deeply charred and fully tender and shallots begin to brown, 10 to 15 minutes more.

    Shallots added to mixture of 2 trays of brussel sprouts

    Serious Eats / Morgan Hunt Glaze

  4. Immediately after removing sheets from oven, drizzle sprouts with balsamic vinegar and shake to coat. Season to taste with more salt and pepper if desired and serve.

    Roasted brussel sprouts and shallots with a balsamic glaze in a bowl, with glasses of sparkling water, some smaller plates and a colorfully printed table top

    Serious Eats / Morgan Hunt Glaze

Special Equipment

Rimmed baking sheets

Notes

Look for sprouts about one and a half inches in diameter, with tight heads.

Chicken, turkey, or duck fat can be used in place of the olive oil. Crisped bacon or fatback can be added to the Brussels sprouts after roasting.

You can substitute 2 thinly sliced red onions for shallot in the recipe. Aged sherry vinegar may bee substituted for balsamic.

Make-Ahead and Storage

The Brussel sprouts and shallots can be cut and refrigerated, before tossing with oil, for up to 2 days.

Leftovers can be refrigerated in an airtight container for up to 2 days.

Nutrition Facts (per serving)
107Calories
5gFat
14gCarbs
4gProtein
×
Nutrition Facts
Servings: 8 to 12
Amount per serving
Calories107
% Daily Value*
Total Fat 5g7%
Saturated Fat 1g4%
Cholesterol 0mg0%
Sodium 186mg8%
Total Carbohydrate 14g5%
Dietary Fiber 4g14%
Total Sugars 5g
Protein 4g
Vitamin C 73mg364%
Calcium 53mg4%
Iron 2mg10%
Potassium 469mg10%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

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