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A handheld smartphone photo looking down at crispy Mexican Roasted Potatoes with visible red spice flecks and dark brown caramelized corners in a cast-iron pan.

Mexican Roasted Potatoes with Crispy Smoky Chili Crust

Crispy roasted potato cubes coated in a vibrant red chili seasoning rub, roasted to perfection with charred edges, and served with a smooth sour cream dip.
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Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 4 people
Course: Appetizer, Side Dish
Cuisine: Mexican
Calories: 245
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 3 large Russet potatoes (approx. 2 lbs / 907g) cut into uniform 1-inch (2.5cm) cubes and dried thoroughly
  • 3 tbsp Avocado oil or olive oil 45ml, high smoke point oil preferred
  • 1 tbsp Ancho chili powder 7g, builds the authentic smoky red rub base
  • 1 tsp Smoked paprika 2g, adds vibrant color and wood-smoke aroma
  • 1 tsp Ground cumin 2g, infuses foundational earthy warmth
  • 1 tsp Garlic powder 3g, evenly distributes savory aromatic notes
  • 1 tsp Onion powder 3g, complementary sweet and savory element
  • 1/2 tsp Dried oregano (preferably Mexican) 0.5g, provides a subtle citrusy, herbal lift
  • 1 tsp Sea salt 6g, absolutely critical for flavor extraction
  • 1/2 tsp Coarse black pepper 1g, sharp flavor balance
  • 1/4 tsp Cayenne pepper 0.5g, optional for extra fiery heat
  • 1/4 cup Fresh cilantro 10g, coarsely chopped for a vibrant garnish
  • 1/2 cup Smooth sour cream 120g, served thick and cold on the side as a dip

Equipment

  • 1 10-inch Black Cast-Iron Skillet Preheated in the oven for maximum crispiness.
  • 1 Large Mixing Bowl Used to toss potatoes with oil and spices uniformly.

Method
 

Preparation & Seasoning
  1. Preheat your oven to 425°F (218°C). Place your 10-inch black cast-iron skillet inside the oven during preheating to heat the surface completely.
  2. Wash, peel, and cut the potatoes into uniform 1-inch (2.5cm) cubes. Dry them thoroughly using clean paper towels to eliminate excess moisture.
  3. In a large bowl, whisk together ancho chili powder, smoked paprika, cumin, garlic powder, onion powder, oregano, salt, black pepper, and cayenne. Drizzle the oil over the dried potatoes, then toss thoroughly with the spice mixture until every cube turns deep red.
Roasting
  1. Carefully remove the hot skillet from the oven. Pour the seasoned potato cubes into it immediately, spreading them into a flat, single layer.
  2. Return the skillet to the oven and roast at 425°F (218°C) for 30 to 35 minutes, flipping with a thin metal spatula at the 15-minute mark until dark brown caramelized edges form.
  3. Remove from oven, let rest for 2 minutes, then garnish heavily with coarsely chopped green cilantro. Serve immediately alongside a small bowl of smooth sour cream dip.

Notes

Do not crowd the skillet; use two pans if doubling the recipe to avoid steaming.
Ensure the oven is fully preheated to 425°F (218°C) before roasting to lock in the crispy texture.