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Fondant Sweet Potatoes garnished with fresh thyme on white oval platter with one cut in half.
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5 from 1 vote

Fondant Sweet Potatoes

Fondant Sweet Potatoes look fancy, but they’re very easy! Inspired by a classic French technique, this version adds a subtle Cajun kick that turns buttery, caramelized rounds of sweet potato into something truly impressive. Whether you’re planning a holiday menu or dressing up a weeknight dinner, these belong on your table!
Prep Time15 minutes
Cook Time45 minutes
Total Time1 hour
Course: Side Dishes - Potatoes
Cuisine: American / New Orleans
Diet: Diabetic, Gluten Free, Vegetarian
Servings: 6

Ingredients

  • 1 cup vegetable or chicken broth
  • 2 teaspoons Cajun seasoning
  • Pinch cayenne pepper or to taste and tolerance
  • 2 cloves garlic minced
  • 2 tablespoons olive oil
  • 4 medium sweet potatoes peeled and cut into 1-inch thick slices
  • Salt and freshly ground black pepper to taste
  • 1/2 cup unsalted butter (1 stick) cubed
  • 2 sprigs fresh thyme
  • 2 sprigs fresh rosemary

Instructions

  • Preheat oven to 400 degrees.
  • In a small bowl, combine the broth, Cajun seasoning, cayenne (if using), and garlic. Set aside.
  • Heat the olive oil in a 12-inch cast-iron or other heavy, oven-safe skillet over medium-high heat.
  • Season the potatoes with salt and black pepper. Place the sweet potato slices in the skillet, reduce the heat to medium, and cook for 2-3 minutes per side or until lightly browned.
  • Pour the broth mixture over the sweet potatoes. Dot each slice with a cube of butter. Nestle the thyme and rosemary sprigs between the potatoes.
  • Transfer the skillet to the oven and bake 20–25 minutes, or until the sweet potatoes are tender and easily pierced with a paring knife.
  • Remove and discard the herb sprigs. Transfer the potatoes to a serving platter, spoon the buttery pan sauce over them, and garnish with chopped fresh thyme or thyme leaves, if desired.

Notes

SUBSTITUTIONS:
  • Can also use canola, avocado or grapeseed oil.
  • You can also use chicken broth, but vegetable broth keeps this recipe vegetarian and makes it easily vegan with plant-based butter.
  • My Blackening Seasoning is also a great choice for this melting potatoes recipe.
  • If you don’t have or don’t want to purchase fresh thyme and rosemary, leave them out and sprinkle with a little chopped fresh Italian parsley at the end for an herbal note.
TIPS:
  • Choose sweet potatoes with a uniform width and slice them into thick, even 1-inch rounds so they cook evenly and stay creamy in the center.
  • Roast uncovered to let moisture evaporate, checking the broth as they cook—add a splash more if your oven runs hot or the pan is wide.
MAKE AHEAD:
  • Fondant Sweet Potatoes are best straight from the oven. Leftovers reheat well, but they’re not ideal for guests.
  • To prep ahead, peel and slice the potatoes, keep them in water, and refrigerate. Mix the broth and seasonings and cut the butter into small pieces.
  • When ready to cook, blot the potatoes dry and proceed with the recipe.

Nutrition

Serving: 1 | Calories: 317kcal | Carbohydrates: 32g | Protein: 3g | Fat: 20g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 41mg | Sodium: 217mg | Potassium: 568mg | Fiber: 5g | Sugar: 6g | Vitamin A: 22193IU | Vitamin C: 4mg | Calcium: 56mg | Iron: 1mg