HEAT OVEN to 425F/232C
PREPARE CARROTS: If carrots are farm fresh, no need to peel them. Just give them a good scrub. Otherwise, peel carrots with a vegetable peeler. Cut thicker carrots in half lengthwise so that all carrots are about the same thickness (to cook evenly). Thin carrots do not need to be cut (but they may require an extra few minutes cooking to become tender)
ROAST CARROTS: Line a roasting pan with parchment or aluminum foil sprayed with oil. Drizzle oil and sprinkle with salt and pepper. Toss around to coat evenly then lay out carrots in a single layer so they don't overlap. Roast 20 minutes or until tender and easy to pierce with a fork. Remove from oven.
MAKE GLAZE: While carrots are roasting, stir all glaze ingredients together in a microwaveable cup (including raisins). Microwave on high for 1 minute until slightly thickened. Alternatively, place ingredients in a small saucepan and simmer for 5 minutes.
2 teaspoon orange zest, 1/2 cup fresh orange juice, 1 tablespoon maple syrup, 2 tablespoons good quality Balsamic vinegar, 1/2 teaspoon cinnamon powder, 1/2 teaspoon cornstarch, 1/4 cup seedless raisins, optional
BROIL CARROT TZIMMES: Turn oven to Broil and place oven rack about 6 inches/15cm from heat (top of oven). Transfer carrots to an oven-proof casserole dish. Pour glaze over carrots, reserving a few tablespoons for later, and mix to coat evenly. Broil 3 minutes **Make sure raisins are under the carrots or they will burn** Turn carrots over, spoon over glaze from bottom of dish and broil for another 3-4 minutes until browned.
GARNISH: Sprinkle with chopped parsley and nuts. Serve directly from the casserole dish or transfer to a serving platter. Drizzle on extra glaze. Tip: for easier serving, slice carrots in half horizontally in one slice if you like.