Brussels Sprouts on Blackstone: Smashed and Caramelized

Brussels sprouts on a flat-top get a deep caramelized crust on the cut face in about 10 minutes, the kind of char an oven only manages after 25 minutes of roasting. Halved and pressed cut-side down against hot steel, the flat faces brown hard while the leaves inside steam tender under a quick dome. That caramelization is doing real work: browning the natural sugars in the cut face is what separates these from the boiled, sulfurous version most people grew up avoiding.

One base method below, then three variations that all cook the same way: balsamic glazed, bacon, and garlic parmesan.

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Prep: Halve and Dry

Trim and halve. Cut off the tough stem end, peel away any yellowed outer leaves, then halve each sprout through the stem. Small sprouts can stay whole if you prefer, but halved gives you the flat face that actually chars.

Dry them well. Same rule as every other dense vegetable on the griddle: a wet cut face steams instead of searing. Pat the halves dry after washing, or wash ahead of time and let them air-dry.

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Method: Balsamic Caramelized Brussels Sprouts

Ingredients

• 1.5 lbs Brussels sprouts, trimmed and halved
• 3 tbsp avocado oil or olive oil
• ½ tsp kosher salt
• ¼ tsp black pepper
• 2 tbsp balsamic vinegar
• 1 tbsp honey

Instructions

Step 1: Preheat. Set the Blackstone to medium-high, about 400°F. Toss the dry sprout halves with the oil and pepper.

Step 2: Sear cut-side down. Lay the sprouts flat-side down in a single layer with a little space between them. Cook without moving for 4 to 5 minutes, until the cut faces are deeply caramelized, almost blackened at the edges.

Step 3: Dome to finish. Cover the sprouts with a basting dome or a metal bowl and cook 60 to 90 seconds. The trapped steam finishes the leaves without softening the char you just built.

Step 4: Uncover and glaze. Lift the dome, add the balsamic vinegar and honey, and toss for 30 to 60 seconds until the glaze reduces slightly and coats the sprouts.

Step 5: Salt and serve. Season with the salt, slide off the griddle, and serve right away while the glaze is still glossy.

Total cook time: about 10 minutes.

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Variation 1: Bacon Brussels Sprouts

Cook 3 strips of chopped bacon on the griddle first. Scoop out the bacon and cook the sprouts cut-side down in the rendered fat instead of oil, following the same sear-and-dome steps. Skip the balsamic glaze and fold the bacon back in at the end instead.

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Variation 2: Garlic Parmesan Brussels Sprouts

Follow the base method through the dome step, but skip the balsamic and honey. Instead, add 2 cloves minced garlic straight to the griddle for the last 60 seconds and toss. Off the heat, toss again with grated parmesan and a squeeze of lemon so the residual heat melts the cheese into the char.

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Variation 3: Maple Mustard Brussels Sprouts

Swap the balsamic and honey for 1 tablespoon maple syrup and 1 teaspoon Dijon mustard, whisked together before adding. Toss the sprouts in the glaze the same way in the last 30 to 60 seconds. Sweet, tangy, and good next to pork chops.

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Tips

Cut-side down, undisturbed. The char only builds where the flat face sits still against hot steel. Moving the sprouts around early spreads the heat instead of concentrating it, and you lose the crust.

Dry sprouts caramelize, wet sprouts steam. Same rule as green beans and broccoli: pat them dry before they hit the oil.

Don’t skip the dome. Small as they are, Brussels sprouts have a dense core. Without the brief steam, the outside can char past the point the inside catches up.

Size them evenly. Halve large sprouts and leave small ones whole (or halve those too) so everything finishes in the same window.

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Storage and Leftovers

Cooked Brussels sprouts keep 3 to 4 days in the fridge. Reheat on a hot griddle zone for about a minute to bring the char back; the microwave turns them soft and a little sulfurous. Cold, they are good chopped into a salad or a grain bowl.

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More flat-top recipes: Blackstone Side Dishes · Green Beans · Blackstone Broccoli

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Frequently Asked Questions

What temperature do you cook Brussels sprouts on a Blackstone?

Medium-high, about 400°F. That’s hot enough to caramelize the cut faces hard in 4 to 5 minutes without burning them before the dome step finishes the interior.

How long do Brussels sprouts take on a Blackstone?

About 10 minutes total: 4 to 5 minutes searing cut-side down, 60 to 90 seconds under a dome, then a short finish with the glaze. Whole sprouts take a couple minutes longer.

Do you need to boil or blanch Brussels sprouts first?

No. Halved fresh sprouts cook through on the griddle in about 10 minutes with no blanching. The dome step steams the leaves tender while the cut face stays caramelized, so there is no reason to dirty a pot first.

Why are my griddle Brussels sprouts burnt outside but raw inside?

The dome step got skipped, or the sprouts were cut too thick. A hard sear chars the cut face fast, and without a brief covered steam afterward the center never catches up. Halve larger sprouts evenly and always dome for the last minute.

Can you cook frozen Brussels sprouts on a Blackstone?

Yes, but do not thaw them first. Put them on the hot, oiled steel straight from the freezer and expect a couple extra minutes while the ice cooks off. They will not caramelize quite as hard as fresh halves, so keep an eye on moisture and let the surface run dry between tosses.