Fall is the perfect season for hearty, flavorful root vegetables—and this Apple Cider Roasted Root Vegetables recipe showcases them at their best. Roasting brings out the natural sweetness and caramelized edges of carrots, parsnips, sweet potatoes, and red onions, while a simple apple cider vinegar and Dijon mustard dressing adds bright, tangy depth. This is an easy, crowd-pleasing side that works equally well for weeknight dinners or holiday spreads.

Root vegetables include many familiar kitchen staples—carrots, potatoes, sweet potatoes, beets, parsnips, and onions—and some less common but equally delicious varieties such as turnips, rutabaga, and celeriac. They shine in autumn because they are harvested and stocked at peak flavor this time of year. Buying seasonal produce can help reduce grocery costs and boost taste, and many root vegetables keep well for weeks to months when stored properly in a cool, dark place. Because they develop underground, root vegetables concentrate a variety of vitamins and minerals, making them a nutritious and satisfying choice for meals.
Ingredients
- 2 large carrots, peeled and cut into 2-inch pieces
- 2 large parsnips, peeled and cut into 2-inch pieces
- 1 large sweet potato, peeled and cut into 2-inch pieces
- 1 medium red onion, cut into thick slices
- 3 tablespoons extra virgin olive oil
- 1 tablespoon Dijon mustard
- 1½ teaspoons kosher salt
- 1 teaspoon dried thyme
- 1/4 cup apple cider vinegar
Step-by-Step
Step one: Preheat the oven
Preheat your oven to 450°F (230°C). A hot oven encourages caramelization and helps the vegetables brown without steaming.
Step two: Prep the vegetables
In a large bowl combine the peeled and cut carrots, parsnips, sweet potato, and thickly sliced red onion. Add the extra virgin olive oil, Dijon mustard, kosher salt, dried thyme, and apple cider vinegar. Toss everything together until the vegetables are evenly coated with the oil and dressing.
Step three: Roast the vegetables
Spread the vegetables in a single layer on a rimmed baking sheet. Roast for about 30 minutes, or until the pieces are tender and nicely browned around the edges. For even cooking, give the pan a quick stir or shake halfway through roasting. If you prefer deeper caramelization, roast a few minutes longer—just watch closely so they don’t burn.
Tips and Variations
- Mix and match root vegetables: beets, turnips, rutabaga, and celeriac are great options—just cut to similar sizes for even cooking.
- To make ahead: peel and cut the vegetables the day before and store them in the refrigerator wrapped in a damp paper towel inside a sealed container to prevent drying. Toss with oil and seasonings just before roasting.
- Add a finishing touch: a sprinkle of chopped fresh parsley or a drizzle of good olive oil just before serving brightens the dish.
- Make it sweeter or spicier: toss in a tablespoon of maple syrup or a pinch of red pepper flakes with the dressing to vary the flavor profile.
Yes. While this recipe uses carrots, parsnips, sweet potato, and red onion, you can substitute or add other root vegetables. Keep the total volume and cut sizes similar for even roasting.
You can prep the vegetables ahead of time. Store peeled and cut vegetables in the refrigerator, wrapped in a damp paper towel in a sealed bag. Toss with the dressing and roast when ready to serve—they taste best fresh from the oven.
Recipe Card

Apple Cider Roasted Root Vegetables
Prep: 10 mins Cook: 30 mins Servings: 4
Ingredients
- 2 large carrots, peeled and cut into 2-inch pieces
- 2 large parsnips, peeled and cut into 2-inch pieces
- 1 large sweet potato, peeled and cut into 2-inch pieces
- 1 medium red onion, thickly sliced
- 3 tablespoons extra virgin olive oil
- 1 tablespoon Dijon mustard
- 1½ teaspoons kosher salt
- 1 teaspoon dried thyme
- 1/4 cup apple cider vinegar
Instructions
- Preheat the oven to 450°F (230°C).
- Toss all vegetables with olive oil, Dijon mustard, salt, thyme, and apple cider vinegar in a large bowl until evenly coated.
- Spread the vegetables in a single layer on a baking sheet and roast for about 30 minutes, stirring once, until tender and browned.
Nutrition (per serving)
Calories: 229 kcal; Carbohydrates: 31 g; Protein: 3 g; Fat: 11 g; Saturated Fat: 2 g; Sodium: 975 mg; Potassium: 638 mg; Fiber: 7 g; Sugar: 9 g; Vitamin A: 13124 IU; Vitamin C: 19 mg; Calcium: 70 mg; Iron: 1 mg. Nutrition information is an approximation.
Additional Info
Author: Alex Snodgrass
Course: Side Dish
This Apple Cider Roasted Root Vegetables recipe is a straightforward, flavorful way to highlight seasonal produce. The apple cider vinegar and Dijon mustard balance the vegetables’ natural sweetness while the high heat creates a pleasing caramelized crust. Serve alongside roasted or grilled mains, add to a grain bowl, or include it on your holiday table for a colorful, comforting side.