Brussels Sprout Slaw

INGREDIENTS

• 1/2 cup pecan halves
• 1 1/2 tsp. plus 1/4 cup olive oil
• 1/4 tsp. kosher salt, plus more, to taste
• 1 tsp. sugar
• Pinch of cayenne pepper
• 2 lb. brussels sprouts, trimmed and fibrous stems removed
• 1 small head radicchio, quartered and cored
• 2 Tbs. cider vinegar
• 1 Tbs. fresh lemon juice
• 2 Tbs. whole-grain mustard
• 3 Tbs. maple syrup
• Freshly ground black pepper, to taste