Caramelized Onion Gruyere Sweet Potatoes (Print)

Savory onions and Gruyere cheese stuffed in perfectly roasted sweet potatoes with fresh herbs.

# Ingredients:

→ Produce

01 - 4 medium sweet potatoes, scrubbed
02 - 2 large yellow onions, thinly sliced
03 - 1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried thyme)
04 - 2 tablespoons chives, finely chopped (plus extra for garnish)

→ Dairy

05 - 2 tablespoons unsalted butter
06 - 1 cup Gruyere cheese, grated
07 - 1/4 cup sour cream

→ Pantry

08 - 1 tablespoon olive oil
09 - 1/2 teaspoon salt
10 - 1/4 teaspoon freshly ground black pepper
11 - 1 teaspoon balsamic vinegar

# Instructions:

01 - Preheat oven to 400°F (200°C). Prick sweet potatoes with a fork and place on a parchment-lined baking sheet. Roast for 50–60 minutes, or until tender when pierced with a fork.
02 - While sweet potatoes roast, heat butter and olive oil in a large skillet over medium heat. Add sliced onions, salt, and pepper. Cook, stirring frequently, for 30–35 minutes until the onions are deeply golden brown and caramelized. Stir in thyme and balsamic vinegar. Remove from heat.
03 - Once sweet potatoes are cool enough to handle, slice them lengthwise. Carefully scoop out most of the flesh, leaving a thin border to maintain the structural integrity of the skins.
04 - In a mixing bowl, combine the reserved sweet potato flesh, caramelized onions, 2/3 cup of the grated Gruyere cheese, sour cream, and chopped chives. Mix thoroughly. Adjust seasoning with salt and pepper to taste.
05 - Spoon the prepared filling back into the hollowed sweet potato skins. Evenly distribute the remaining Gruyere cheese over the top of each stuffed potato.
06 - Return the stuffed potatoes to the oven and bake for an additional 10–12 minutes, until the cheese is melted and develops a golden hue.
07 - Garnish with extra chopped chives and serve immediately while hot.

# Pro Tips:

01 -
  • Ready in 90 minutes with mostly hands off cooking time
  • Perfect balance of sweet and savory flavors
  • Makes an impressive vegetarian main dish or elegant side
  • Can be partially prepped ahead for easier weeknight cooking
02 -
  • Each serving provides a complete meal with complex carbohydrates, protein, and healthy fats
  • Can be made up to 3 days ahead and reheated in the oven
  • Perfect for meal prep with minimal quality loss when properly stored
03 -
  • The key to perfectly caramelized onions is patience and consistent low heat. Never rush this process by turning up the heat, as you'll get burnt rather than caramelized results.
  • When selecting sweet potatoes, choose ones of similar size to ensure even cooking times.
  • For the absolute best presentation, brush the potato skins with a little olive oil before the initial bake to create a more appealing exterior that crisps slightly and holds up better to the filling.

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