Pan-Seared Radicchio with Balsamic Reduction and Walnuts

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Bitter radicchio leaves seared to tender crispness, finished with a sweet and tangy balsamic reduction and crunchy toasted walnuts. This italian-inspired vegetarian ready in about 25 minutes pairs radicchio head, extra virgin olive oil, balsamic vinegar for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 15 min Serves 2 Italian cuisine 180 cal/serving
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Ingredients

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Instructions

  1. Step 1: Cut 1 medium radicchio into quarters lengthwise, keeping the core intact to hold leaves together. Heat 2 tbsp extra virgin olive oil in a large skillet over medium-high heat.
  2. Step 2: Place radicchio quarters cut-side down in the hot skillet and sear for 3-4 minutes until edges are charred and leaves soften but retain structure. Season with 1/4 tsp salt and 1/4 tsp freshly ground black pepper.
  3. Step 3: Meanwhile, in a small saucepan, combine 1/3 cup balsamic vinegar and 1 tsp granulated sugar. Bring to a simmer over medium heat and cook for 5-7 minutes until reduced by half and syrupy.
  4. Step 4: To serve, drizzle the balsamic reduction over the warm radicchio and sprinkle 1/4 cup toasted walnut halves for a bitter-sweet and crunchy contrast.

Frequently asked questions

How long does Pan-Seared Radicchio with Balsamic Reduction and Walnuts take to make?

Total time is about 25 minutes (10 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Pan-Seared Radicchio with Balsamic Reduction and Walnuts?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep radicchio head from drying out.

Can I substitute ingredients in Pan-Seared Radicchio with Balsamic Reduction and Walnuts?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Pan-Seared Radicchio with Balsamic Reduction and Walnuts for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Pan-Seared Radicchio with Balsamic Reduction and Walnuts vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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