Description
This Sweet Potato & Caramelized Onion Bake is a comforting, flavorful dish perfect for crisp autumn evenings or cozy family dinners. Tender sweet potatoes layered with golden, caramelized onions and warm spices create a dish that’s both hearty and visually stunning. Inspired by traditional home-cooked meals, this bake fills your kitchen with inviting aromas and brings warmth to any table. It’s a side dish that can also shine as a vegetarian centerpiece, offering a perfect balance of natural sweetness and savory depth.
Ingredients
-
4 medium sweet potatoes, peeled and thinly sliced
-
2 large yellow onions, thinly sliced
-
3 tablespoons olive oil
-
2 tablespoons unsalted butter
-
3 cloves garlic, minced
-
1 teaspoon fresh thyme leaves (or ½ teaspoon dried thyme)
-
½ teaspoon smoked paprika
-
½ teaspoon ground cinnamon
-
¼ teaspoon ground nutmeg
-
Salt and freshly ground black pepper, to taste
-
½ cup vegetable broth
-
½ cup grated Parmesan or plant-based alternative
-
2 tablespoons fresh parsley, chopped (for garnish)
Instructions
-
Preheat the oven to 400°F (200°C). Lightly grease a 9×13-inch baking dish with olive oil.
-
Peel the sweet potatoes and slice them into thin, even rounds, about 1/8-inch thick, for uniform cooking. Place the slices in a large mixing bowl.
-
In a large skillet over medium heat, melt the butter with 1 tablespoon olive oil. Add the sliced onions and a pinch of salt. Cook slowly, stirring occasionally, until golden brown and soft, about 20–25 minutes. In the last 2 minutes, add the minced garlic and cook until fragrant.
-
Toss the sweet potato slices with the remaining olive oil, smoked paprika, cinnamon, nutmeg, salt, and pepper until evenly coated.
-
Spread half of the sweet potato slices in the prepared baking dish. Add a layer of caramelized onions on top. Repeat with the remaining sweet potatoes and onions, creating layered effect.
-
Pour the vegetable broth evenly over the layers and sprinkle the grated Parmesan or plant-based alternative on top.
-
Cover the dish with aluminum foil and bake for 30 minutes. Remove the foil and bake an additional 20–25 minutes, until the sweet potatoes are tender and the top is golden and slightly crispy.
-
Remove from the oven and let rest for 5 minutes. Garnish with chopped parsley before serving.
Notes
-
Slice sweet potatoes evenly for consistent cooking; a mandoline works well.
-
Caramelize onions slowly to develop deep, sweet flavor.
-
Can be made a day ahead; cover and refrigerate, then bake before serving.
-
Optional: add toasted nuts or breadcrumbs in the last 5–10 minutes for crunch.
-
Leftovers keep in the refrigerator for up to 3 days and reheat well.
- Prep Time: 20 minutes
- Cook Time: 55 minutes