It was simplicity itself: delicately shaved raw Brussels sprouts with wisps of red onion, a light, lemony dressing spiked generously with whole grain mustard, and a generous hit of tangy Pecorino. I immediately declared that I would try and replicate it at home, and this was met with great enthusiasm by my husband.

Shaved Brussels Sprout Salad with Red Onion, Lemon and Pecorino

Ingredients 

• 1/2 small red onion
• 1 lemon, juiced
• 1 teaspoon honey
• 1 teaspoon whole grain mustard
• 1 pinch salt and freshly ground black pepper
• 1 tablespoon olive oil
• 3 cups Brussels sprouts (use larger sprouts if possible)
• 1/2 cup finely grated pecorino romano

• Directions

• Soak the onion slices in a small bowl of cold water for 15 to 20 minutes while you prepare the rest of the ingredients.
• In a small bowl, whisk together the lemon juice, honey, mustard and a pinch of salt and pepper. Whisk in the olive oil until the dressing is emulsified. Set aside.
• Trim all of the Brussels sprouts, cutting off any bruised outer leaves and slicing off a good portion of the hard root end. Using a mandoline, shave the sprouts one at a time. When you're done, use your fingers to gently separate the leaves so that the shredded sprouts resemble a very fine slaw.
• Put the sprouts in a serving bowl and toss gently with the onions (which you've now drained) and the dressing. Fold in the pecorino, taste and adjust seasonings if necessary. Serve immediately, before it starts to wilt!

https://food52.com/recipes/7650-shaved-brussels-sprout-salad-with-red-onion-lemon-and-pecorino