Gluten-Free Roasted Potatoes Recipe
Potatoes in their plain, whole form are naturally gluten free, since gluten is a protein found only in wheat, barley, and rye, none of which are potatoes. This recipe keeps that intact by using a short, unprocessed ingredient list (potatoes, oil, garlic, herbs), tossing the potatoes in a little cornstarch before roasting to draw out surface starch for a shatter-crisp crust, and roasting at high heat on a fully preheated pan so the exterior browns before the inside turns mushy.
- Prep
- 15 min
- Cook
- 35 min
- Total
- 50 min
- Servings
- 4
Ingredients
- 2 lb baby potatoes, halved
- 3 tbsp olive oil
- 1 tbsp cornstarch
- 4 cloves garlic, minced
- 1 tbsp fresh rosemary, chopped
- 1 tsp kosher salt
- 1/2 tsp black pepper, freshly ground
- 2 tbsp grated parmesan (optional)
Nutrition per serving
- Calories
- 288
- Protein
- 6g
- Carbs
- 43g
- Fat
- 11g
Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.
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Instructions
- 1Preheat the oven to 450°F (230°C) and place a rimmed baking sheet inside to heat up as the oven comes to temperature.
- 2Halve the baby potatoes so the pieces are roughly the same size, then pat them dry with a clean towel; surface moisture steams the potatoes instead of letting them brown.
- 3In a large bowl, toss the potatoes with the olive oil and cornstarch until evenly coated.
- 4Add the garlic, rosemary, salt, and pepper, and toss again to distribute the seasoning.
- 5Carefully pull out the hot baking sheet and spread the potatoes in a single layer, cut side down, working quickly so the pan stays hot.
- 6Roast for 30-35 minutes, flipping once halfway through, until the cut sides are deeply golden and a fork slides in easily.
- 7Sprinkle with parmesan, if using, while still hot, and serve immediately.
Tips & variations
- Whole, unprocessed potatoes of any variety, russet, red, Yukon Gold, fingerling, are naturally gluten free; the gluten risk with potato dishes almost always comes from what's added, not the potato itself.
- Watch out for pre-seasoned frozen potato products, boxed scalloped or au gratin potato mixes, and some malt vinegar-based chip seasonings, all of which can contain wheat-derived ingredients or malt.
- At restaurants, fries are often fried in the same oil as breaded items like chicken tenders or onion rings, which introduces cross-contact even though the potato itself is fine.
- Swap the rosemary for smoked paprika and chili powder for a spicier version, or finish with lemon zest and chopped parsley for a brighter, herby finish.
Storage & reheating
Store cooled leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in a 425°F (220°C) oven or air fryer for 8-10 minutes to re-crisp the exterior; microwaving will make them soft.
Tips from the Tulo kitchen
- Cutting the potatoes into uniform sizes matters more than the exact shape, since mismatched pieces finish cooking at different rates and some will overcook while others stay firm.
- Don't crowd the pan. Potatoes packed too close together steam each other instead of roasting; use two sheet pans if doubling the recipe.
FAQ
Are potatoes gluten free?
Yes. Potatoes are a vegetable with no gluten in their natural form, since gluten only comes from wheat, barley, rye, and closely related grains. Plain baked, boiled, mashed, or roasted potatoes made from scratch are gluten free.
Are French fries gluten free?
Plain-cut fries are usually gluten free, but many restaurants fry them in shared oil with breaded foods, which introduces cross-contact. Some frozen fries also include a wheat-based batter coating for extra crispness, so checking the ingredient label or asking about the fryer is worth doing if gluten is a concern.
Is potato starch the same as gluten?
No. Potato starch is a carbohydrate extracted from potatoes and contains no gluten protein at all. It's commonly used as a gluten-free thickener and in gluten-free flour blends specifically because it behaves similarly to wheat starch without any gluten.
Can people with celiac disease eat mashed potatoes or potato skins?
Plain mashed potatoes made with butter, milk, and seasoning are gluten free, but boxed instant mashed potato mixes and some restaurant potato skins can include wheat-based fillers, flour-thickened sauces, or shared fryers, so those need checking case by case.
Is vodka made from potatoes gluten free?
Yes, vodka distilled from potatoes is gluten free, and even grain-based vodkas are typically considered safe for most people with celiac disease because the distillation process removes the gluten protein, though very sensitive individuals sometimes still prefer potato- or grape-based vodka to be certain.
