A bold, festive radicchio salad with red radicchio and peppery arugula, blue cheese, red onion, and rosemary-roasted walnuts, all tossed in a sweet-tangy balsamic vinaigrette.
Combine all the ingredients in a lidded jar. Shake well to combine. The dressing keeps up to 5 days refrigerated. Makes 1 cup of dressing.
Prepare the salad:
Trim off the stem end of the radicchio. Slice the head in half and remove the core. Slice each half into ½-inch strips, then slice crosswise into bite-size pieces.
Put the radicchio and arugula in a large salad bowl. Add the sliced onion and half of the blue cheese. Drizzle 2-3 tablespoons of the dressing over, and toss together gently.
Sprinkle ½ cup of the walnuts over the salad, along with the remaining cheese. Serve with additional dressing on the side.
Rosemary walnuts - Makes 1 cup
Preheat the oven to 350 degrees.
Toss the walnuts in a medium bowl with the olive oil, rosemary, sugar, salt and red pepper.
Spread the walnuts on a small rimmed tray or ovenproof skillet. Toast in the oven 8-10 minutes, until golden brown. Cool and transfer to a small bowl or airtight container. Top the salad with ½ cup of the walnuts. Any remaining nuts will keep 2 weeks at room temperature.
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Notes
This recipe makes a big salad, enough for 6-8 servings.
The prepped and sliced radicchio (without dressing) will keep up to 3 days, refrigerated in a sealed bag.
Make ahead: Assemble the salad without the dressing up to one day ahead and refrigerate. Toss with the vinaigrette just before serving.
Instead of making the Rosemary Walnuts, use plain roasted, salted walnuts, or store-bought glazed walnuts or almonds.
Tangy, creamy blue cheese has a distinctive taste and texture that can stand up to bold flavors in the salad. Swap it out with another soft, salty cheese such as feta.