Grilled Radicchio with Gorgonzola and Balsamic Glaze

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Grilled Radicchio with Balsamic Glaze turns a bitter salad green into a smoky, caramelized side dish in about 30 minutes. High heat mellows the sharp edge of the leaves while a sticky balsamic reduction adds sweetness that balances it out.

I quarter the heads through the core so each wedge holds together on the grates, then finish with crumbled gorgonzola and toasted walnuts for texture. Skip the cheese if you want it dairy-free, but the salty contrast is what makes this work.

The whole thing comes together in about 30 minutes, most of it hands-off while the glaze reduces. It reads fancier than it actually is, good for a weeknight side or a dinner party plate.

One thing to watch: pull the wedges off the grill as soon as the outer leaves char and curl. Leave them a minute too long and the core turns mushy, and the bitterness comes back stronger.

Why You’ll Love This Recipe

• Ready in about 30 minutes, most of it hands-off
• Grilling mellows the bitterness instead of masking it
• Balsamic glaze can be made 2 weeks ahead
• Works as a side dish or a light starter salad

Ingredient Notes

• radicchio: Look for tight, heavy heads with crisp outer leaves. Belgian endive or escarole both grill well as a swap.
• balsamic vinegar: Use a mid-range balsamic here, not your priciest bottle, since it gets reduced down and concentrated.
• gorgonzola: Substitute goat cheese or shaved parmesan for a milder finish if the funk of blue cheese isn’t your thing.
• walnuts: Toast them in a dry pan before chopping. Raw walnuts taste flat next to the char and glaze.
• honey: Balances the vinegar’s acidity in the glaze. Maple syrup works as a swap in the same amount.

Grilled Radicchio with Gorgonzola and Balsamic Glaze

Radicchio wedges grilled until charred and drizzled with a homemade balsamic reduction, gorgonzola, and toasted walnuts.

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Prep Time 15 minutes mins

Cook Time 15 minutes mins

Total Time 30 minutes mins

Servings: 4 servings

Course: Side Dish

Cuisine: Italian

Calories: 194

Ingredients Method Notes

Ingredients

  

For the Balsamic Glaze (skip if using store-bought)

• 1 cup balsamic vinegar / 240 ml
• 2 tbsp honey

For the Radicchio

• 2 radicchio heads medium (about 250 g each); quartered through the core
• 3 tbsp olive oil
• 1/2 tsp kosher salt
• 1/4 tsp black pepper

For Topping

• 1/2 cup gorgonzola / 60 g; crumbled
• 1/3 cup walnuts / 40 g; toasted and chopped
• 1 tbsp honey for drizzle, optional
• 1 tsp fresh thyme leaves optional garnish

Method

 

Make the Balsamic Glaze

1. Combine the balsamic vinegar and honey in a 1-quart / 1 L saucepan over medium heat. Bring to a gentle simmer.
2. Simmer for 8 to 10 minutes, stirring occasionally, until reduced by about half and thick enough to coat the back of a spoon. Set aside, it will thicken more as it cools.

Grill the Radicchio

1. Heat an outdoor grill or 30 cm / 12-inch cast-iron grill pan to medium-high, about 230 C / 450 F. Clean and lightly oil the grates.
2. Trim any wilted outer leaves from the radicchio, then cut each head into 4 wedges through the core so the leaves stay attached, 8 wedges total.
3. Brush the cut sides of each wedge with olive oil and season with salt and pepper.
4. Place wedges cut-side down on the grill. Grill for 3 to 4 minutes until char marks form and the edges crisp.
5. Flip and grill the other cut side for 3 to 4 more minutes, until the outer leaves are charred and curled but the core is still just tender-crisp. Pull them off right away, extra time turns the core mushy and brings the bitterness back.

Assemble and Serve

1. Transfer the wedges to a platter, cut-side up.
2. Drizzle the warm balsamic glaze generously over the wedges.
3. Top with the crumbled gorgonzola and toasted walnuts. Drizzle with the extra tablespoon of honey and scatter thyme leaves if using. Serve warm.

Notes

• Cut wedges through the core, not across, so the leaves stay attached.
• Reduce glaze until it coats a spoon, about 8 to 10 minutes.
• Pull radicchio off the grill as soon as edges char, don't wait for full wilt.
• Toast walnuts in a dry pan for 3 to 4 minutes before chopping.

Tips for Success

• Cut wedges through the core so the leaves stay attached and don’t fall through the grates.
• Oil the cut sides of the wedges directly, not just the grates, so the leaves don’t stick and tear.
• Reduce the balsamic vinegar and honey yourself instead of buying pre-made glaze for more control over sweetness.
• Toast the walnuts in a dry skillet for 3 to 4 minutes before chopping for deeper flavor.
• Pull the wedges the moment the outer leaves char and curl, about 3 to 4 minutes per side.

Variations

• Swap gorgonzola for goat cheese or shaved parmesan if you want a milder, less funky finish.
• Add grilled peaches or figs alongside the radicchio for a sweeter, late-summer version.
• Use a 30 cm / 12-inch cast-iron grill pan on the stovetop instead of an outdoor grill on rainy days.

Storage and Reheating

Grilled radicchio is best eaten the day it’s made, since reheating turns the charred leaves soft and brings back their raw bitterness. If you have leftovers, store them covered in the fridge for up to 2 days and eat cold, chopped into a salad with the leftover glaze as dressing.

The balsamic glaze is the one part that holds up well ahead of time. Keep it in an airtight jar in the fridge for up to 2 weeks and warm it gently on the stove or in short microwave bursts before drizzling.

Toasted walnuts also keep for up to a week in an airtight container at room temperature, so you can prep both toppings ahead and just grill the radicchio fresh.

Serving Suggestions

Grilled radicchio works well next to something rich, since its bitter-sweet edge cuts through fattier proteins. Try it alongside a grilled steak, pork chops, or roast chicken.

For a lighter meal, serve the wedges with burrata or fresh mozzarella and warm crusty bread to soak up the glaze. It also holds its own as a starter, plated on its own with an extra scatter of gorgonzola.

Pour a dry Italian red like Chianti or Barbera. The tannins stand up to the char and the balsamic without fighting the bitterness of the leaves.

FAQ

Why is my grilled radicchio still bitter after grilling?

It’s likely undercooked, since char is what develops the sugars that mellow radicchio’s natural bitterness. Give the cut sides a full 3 to 4 minutes per side until the edges are dark and curled, not just lightly browned. A generous drizzle of balsamic glaze also helps counter what char alone doesn’t fix.

Can I use endive or escarole instead of radicchio?

Yes, Belgian endive and escarole grill the same way and hold up fine on the grates. Endive chars faster since the leaves are thinner, so check it after 2 to 3 minutes per side instead of 3 to 4. Escarole is milder, so you may want less balsamic glaze to keep the balance right.

Can I make the balsamic glaze for this radicchio ahead of time?

Yes, the glaze is an easy make-ahead piece and actually thickens more once it’s cold. Store it in an airtight jar in the fridge for up to 2 weeks and warm it gently before drizzling. Grill the radicchio fresh though, since it doesn’t hold up to reheating.

What goes well with grilled radicchio and balsamic glaze?

It pairs well with grilled steak, pork chops, or roast chicken, since the bitter-sweet edge cuts through richer meats. Burrata or fresh mozzarella with crusty bread turns it into a lighter meal. A dry Italian red like Chianti complements both the char and the balsamic notes.

Is grilled radicchio with balsamic glaze gluten free?

Yes, radicchio, balsamic vinegar, honey, gorgonzola, and walnuts are all naturally gluten free. Check the label if you’re using a store-bought balsamic glaze, since some brands add thickeners that contain gluten. Making your own glaze from vinegar and honey sidesteps that question entirely.

What’s the difference between grilling radicchio and eating it raw in a salad?

Grilling changes both texture and flavor, the leaves char and soften while their sharp raw bitterness mellows into something closer to roasted vegetables. Raw radicchio stays crisp and sharply bitter, better suited to a salad with a strong vinaigrette. The balsamic glaze here leans into the caramelized, sweeter direction grilling takes it.

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