Shaved Brussels Sprouts with Brown Butter Vinaigrette, Walnuts & Pecorino

Ingredients

• 1 pound Brussels sprouts
  
• 1 pinch kosher salt
  
• 6 tablespoons chopped, toasted walnuts, divided, plus more for topping
  
• 2 tablespoons unsalted butter
  
• 1/2 small shallot
  
• 1 1/2 teaspoons Dijon mustard
  
• 1 tablespoon sherry vinegar or apple cider vinegar
  
• 1 1/2 teaspoons water
  
• 1/4 cup grated pecorino, plus more for topping
  
• Several grinds black pepper
  

Directions

1. Shave the Brussels sprouts on a mandoline into a large bowl. Season with a big pinch of salt and toss. While that rests, make the dressing.
2. Put 2 tablespoons walnuts in a heatproof bowl. Add the butter to a small skillet and set on the stove over medium heat. Melt until it browns, 2 to 3 minutes. Immediately pour it over the walnuts. Leave that to cool for a moment while you combine the shallot, Dijon, vinegar, and water in a food processor or blender. Pulse to combine, scraping down as needed, until as smooth as possible. Add the walnuts and brown butter and process until smooth.
3. Add the dressing to the salted sprouts, plus the remaining walnuts and pecorino. Toss. Top with more nuts and cheese and some freshly ground black pepper.