1 1/2 lbs parsnips, peeled and cubed (cut out woody cores if needed)
1 1/2 - 2 lbs sweet potatoes, peeled and cubed
1-2 Tbsp walnut oil
1 Tbsp maple syrup, as dark a grade as possible
Salt to taste
Preheat the oven to 400 degrees.
Toss the parsnips and sweet potatoes in a bowl with the oil and syrup, then add salt to taste. Spread out in a single layer (or nearly) on a baking sheet and roast until tender, about 30 minutes (may be longer if you like big cubes).