Preheat your oven to 425°F (220°C).
Peel and cut the parsnips into even-sized pieces, roughly 1-2 inches long.
In a large bowl, combine the olive oil, maple syrup, cinnamon, salt, and pepper.
Add the parsnips to the bowl and toss until fully coated.
Spread the parsnips evenly on a baking sheet lined with parchment paper.
Roast for 25-30 minutes until golden brown, turning halfway through.
Taste and adjust seasoning if necessary before serving warm.