Go Back
–+ servings
A plate of seasoned fries topped with melted cheese and caramelized onions, served on a white dish.
Print Recipe
5 from 1 vote

French Onion Fries

If you love the rich, caramelized goodness of French onion soup and the crispy comfort of homemade fries, then these French Onion Frie sare a must-try! This recipe takes golden-baked fries and loads them up with sweet, slow-cooked onions, melty cheese, and aromatic herbs for the ultimates nack or side dish.
Prep Time15 minutes
Cook Time50 minutes
Total Time1 hour 5 minutes
Course: Side
Servings: 4
Calories: 250kcal
Author: Sophie Viau

Equipment

  • Large nonstick skillet or cast-iron pan
  • Baking sheet (lined with parchment paper for easy cleanup
  • Sharp knife
  • Mixing bowl
  • Spatula or tongs

Ingredients

  • 1 large sweet onion thinly sliced
  • 1 tablespoon butter for caramelizing onions
  • 4 medium russets potatoes cut into fries
  • 1 tablespoon olive oil
  • ½ teaspoon sea salt plus more to taste
  • ¼ teaspoon black pepper
  • ½ teaspoon onion powder
  • ½ teaspoon smoked paprika for extra depth
  • ½ cup shredded Swiss cheese
  • 1 teaspoon dried oregano

Instructions

  • Heat a skillet over medium heat and add butter. Once heated, add the sliced onions and a pinch of salt.
  • Reduce heat to medium-low and cook for 30-40 minutes, stirring occasionally, until the onions turn deep golden brown. If they start to dry out, add a splash of vegetable broth or a small drizzle of oil.
  • Preheat oven to 425°F (220°C).
  • In a bowl, toss the cut potatoes with olive oil, salt, black pepper, onion powder, and smoked paprika.
  • Spread them evenly on a parchment-lined baking sheet. Bake for 30-35 minutes, flipping once halfway through, until crispy and golden.
  • Once fries are ready, gather them together in the center of the baking sheet.
  • Top with caramelized onions, shredded cheese, and oregano.
  • Place the baking sheet under the broiler for about 5 minutes, or until the cheese is bubbly and melted.
  • Serve immediately and enjoy!

Notes

Storage & Reheating:
  • Storage: Store any leftovers in an airtight container in the fridge for up to 2 days.
  • Reheating: Reheat in an oven at 375°F (190°C) for 10 minutes or in an air fryer for 5 minutes to crisp them up again.

Nutrition

Calories: 250kcal | Carbohydrates: 44g | Protein: 5g | Fat: 7g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.1g | Cholesterol: 8mg | Sodium: 333mg | Potassium: 1012mg | Fiber: 6g | Sugar: 6g | Vitamin A: 225IU | Vitamin C: 46mg | Calcium: 53mg | Iron: 2mg
QR Code linking back to recipe