Instructions
- Preheat the oven to 350 degrees F.
- Make the vinaigrette: To a small bowl, add the finely chopped shallots and white wine vinegar. Let the shallots sit in the vinegar for 5 minutes to soften. Whisk in the Dijon mustard, kosher, and pepper. Slowly stream in the olive oil, whisking while you pour. Whisk for another minute until emulsified.
- Place the walnuts on a rimmed baking sheet, and roast for 12-15 minutes until golden, toasted, and fragrant. Set them aside and let cool.
- Assemble the salad: In a large serving bowl, layer in the arugula, sliced ripe pears, and red onion. Top the salad generously with the roasted walnuts, and the crumbled Cashel Blue cheese.
- Drizzle the vinaigrette generously on top, and serve immediately.