INGREDIENTS
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1 stick butter, sliced
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1-2 pounds Brussels sprouts, scored on the base (if needed) and halved
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salt and pepper
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pancetta (optional)
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peanut oil or vegetable oil
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about 2 large shallots, sliced into long strips
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½ cup toasted and halved hazelnuts
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grated Emmental or Gruyère cheese
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few sprigs of fresh thyme (optional)
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a dash or 2 of aged balsamic vinegar