Oil-Free Spiced & Roasted Sweet Potatoes

Oil-free spiced and roasted sweet potatoes are delicious; roasting caramelizes the sugars and intensifies the flavors of the sweet potatoes without the added fat that oil brings.

Bamboo rounded platter with Oil-free Spice Roasted Sweet Potatoes on a wooden placemat and oil-free vegan mayonnaise in a small white bowl.

The oil-free technique described below also works well with all types of potatoes, root vegetables and non-starchy vegetables like cauliflower. The roasting time varies but the basic method remains the same. The natural flavors of the sweet potatoes and the spices give ample flavor such that you don’t need salt, making this a naturally SOS free dish (no added salt, oil or sugar).

Be sure to let the potatoes rest for at least 10 minutes after spicing (step#10 below) before roasting them. This will make it so the spices don’t over- brown or burn during the roasting. For potatoes and sweet potatoes, the total roasting time is about 45 minutes. A typical bake sheet will hold up to 2 pounds of potatoes in a single layer.

Pinterest Image: Bamboo plate of oil-free spiced and roasted sweet potatoes

Tools Used in this Recipe

  • salad spinner or large prep bowl for washing the potatoes
  • vegetable scrub glove or brush
  • cutting board
  • chef knife or santoku knife
  • large prep bowl for tossing the potatoes with spices
  • bake sheet
  • parchment paper
Print Recipe
Oil-Free Spiced & Roasted Sweet Potatoes Recipe
Bamboo rounded platter with Oil-free Spice Roasted Sweet Potatoes on a wooden placemat and oil-free vegan mayonnaise in a small white bowl.
Course Side
Cuisine American
Prep Time 10 minutes
Cook Time 45 minutes
Servings
Ingredients
  • 2 lbs sweet potatoes or potatoes.
  • 1–2 tbls ground spices see step 8 below for spice blend uggestions
Course Side
Cuisine American
Prep Time 10 minutes
Cook Time 45 minutes
Servings
Ingredients
  • 2 lbs sweet potatoes or potatoes.
  • 1–2 tbls ground spices see step 8 below for spice blend uggestions
Bamboo rounded platter with Oil-free Spice Roasted Sweet Potatoes on a wooden placemat and oil-free vegan mayonnaise in a small white bowl.
Instructions
  1. Preheat the oven to 400° and gather one kind or mixed potatoes.
  2. Place the potatoes in the wash bowl or salad spinner.
  3. Scrub the potatoes reallywell with a scrub glove or vegetable brush.
  4. They brighten up after the scrub (so pretty).
  5. Cut the potatoes to size. 1 1/2 to 2 in or larger. If they are too small they get overdone on the inside before the have picked up color on the outside.
  6. Rinse in clean water in the bowl and drain. They don’t need to be totally dry. A little water helps in the spicing step next.
  7. Place in a large prep bowl.
  8. Sprinkle with spices of your choice. In this one I used 2 tsps ground cumin, 2 tsps ground coriander, 1 tsp Aleppo (sweet and piquante hot red pepper flakes), and a few grinds of black pepper.
  9. Tossing the potatoes in the bowl gives the best distribution of spices (and kinda fun), but stirring with a wooden spoon or flat spatula will work well too.
  10. Let the potatoes sit with the spices for 10 minutes or longer. This time allows the spice to absorb moisture and not burn during the roasting. It also flavors the potatoes nicely.
  11. On a parchment paper lined bake sheet, place the spiced potatoes on a single layer and put in the oven for 20–30 minutes (check at 20 minutes as ovens vary). The potato side on the paper should be brown in spots. When the undersides are browned in spots, turn them over and roast for another 10–15 minutes.
  12. Take them out and you can toss them in a dressing if you like or serve them as is.