Maple Bacon Cabbage Wedges

Ingredients

• Freshly ground pepper
• 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt, plus more
• 2 Tbsp. Dijon mustard
• 4 Tbsp. unsalted butter
• ¼ cup red wine vinegar
• 4 sprigs thyme
• 3 Tbsp. pure maple syrup
• 1 very large or 2 small savoy cabbages (2–2½ lb. total), halved, cut into 4–6 wedges depending on size
• 2 Tbsp. (or more) extra-virgin olive oil, plus more for drizzling
• 4 slices thick-cut bacon (about 6 oz.), cut into ¼"-thick pieces
• 1 medium shallot, finely chopped