Charred Grapefruit and Radicchio Salad with Bitter Walnut Vinaigrette

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

A vibrant salad combining the sharp bitterness of charred grapefruit and radicchio with a nutty walnut vinaigrette that balances the flavors beautifully. This mediterranean-inspired salads ready in about 22 minutes pairs large, halved grapefruit, small head, chopped radicchio, toasted and chopped walnuts into a side that holds its own next to almost any main — bright, balanced, and quick enough to slot into a weeknight plate. Each serving lands at about 180 calories and feeds 4, so it slots cleanly next to roasted proteins, grain bowls, or weeknight mains. 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: 15 min Cook: 7 min Serves 4 Mediterranean cuisine 180 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat a grill pan over medium-high heat. Place 2 halved grapefruits cut side down and char for 3-4 minutes until the edges caramelize and the surface is fragrant.
  2. Step 2: In a small bowl, whisk together 1/4 cup extra virgin olive oil, 2 tbsp apple cider vinegar, 1 tsp Dijon mustard, 1 tsp honey, 1/2 tsp salt, and 1/4 tsp black pepper until emulsified and smooth.
  3. Step 3: In a large bowl, combine 1 small head chopped radicchio with the charred grapefruit segments (scooped out after cooling slightly) and 1/3 cup toasted chopped walnuts.
  4. Step 4: Drizzle the walnut vinaigrette over the salad and toss gently until all components are evenly coated, serving immediately to enjoy the fresh bitter and nutty flavors.

Equipment for this recipe

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Frequently asked questions

How long does Charred Grapefruit and Radicchio Salad with Bitter Walnut Vinaigrette take to make?

Total time is about 22 minutes (15 min prep + 7 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 Charred Grapefruit and Radicchio Salad with Bitter Walnut Vinaigrette?

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 large, halved grapefruit from drying out.

Can I substitute ingredients in Charred Grapefruit and Radicchio Salad with Bitter Walnut Vinaigrette?

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 Charred Grapefruit and Radicchio Salad with Bitter Walnut Vinaigrette for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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.

What goes well with Charred Grapefruit and Radicchio Salad with Bitter Walnut Vinaigrette?

Mediterranean salads like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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