Savory Sweet Potatoes with Parmesan, Caramelized Onions and Rosemary Butter

Introduction

Sweet potatoes are often celebrated for their natural sweetness, but this dish takes a delightful turn with a savory twist. By combining rich flavors like Parmesan, caramelized onions, and fragrant rosemary butter, sweet potatoes are transformed into a gourmet side dish that’s perfect for any occasion. Whether you’re serving it at a holiday dinner or just craving a cozy meal at home, these savory sweet potatoes will surely steal the show. The caramelized onions add a deep, sweet-and-savory flavor that balances the nutty, salty Parmesan. A final drizzle of rosemary-infused butter elevates the dish, making it both aromatic and indulgent.

Prep Time: 15 minutes

Cooking Time: 50 minutes

Total Time: 1 hour 5 minutes

Ingredients:

  • 4 large sweet potatoes, peeled and sliced into 1/4 inch rounds
  • 2 tablespoons olive oil
  • Salt and black pepper, to taste
  • 1 large onion, thinly sliced
  • 1 tablespoon butter (for caramelizing the onions)
  • 3 tablespoons butter (for rosemary butter)
  • 2 cloves garlic, minced
  • 1 tablespoon fresh rosemary, finely chopped
  • 1/2 cup freshly grated Parmesan cheese
  • 2 tablespoons fresh parsley, chopped (optional for garnish)
  • 1 tablespoon lemon juice (optional for a hint of acidity)

Preparation:

Step 1: Preheat and Prep

  • Preheat your oven to 400°F (200°C).
  • Line a baking sheet with parchment paper or lightly grease it with olive oil.
  • Arrange the sweet potato rounds in a single layer on the baking sheet. Drizzle with olive oil, and season generously with salt and black pepper.

Step 2: Roast the Sweet Potatoes

  • Place the sweet potatoes in the preheated oven. Roast for 20-25 minutes, flipping halfway through to ensure even cooking. The edges should be golden brown and slightly crispy.

Step 3: Caramelize the Onions

  • While the sweet potatoes are roasting, heat a skillet over medium-low heat. Add 1 tablespoon of butter and allow it to melt.
  • Add the thinly sliced onions and a pinch of salt. Cook slowly, stirring occasionally, until the onions are golden brown and caramelized—about 20 minutes. Lower the heat if needed to prevent burning. Set aside once done.

Step 4: Prepare the Rosemary Butter

  • In a small saucepan, melt the remaining 3 tablespoons of butter over medium heat. Add the minced garlic and chopped rosemary, stirring frequently until fragrant, about 2-3 minutes. Remove from heat and set aside.

Step 5: Assemble and Bake

  • Once the sweet potatoes are roasted, remove them from the oven and transfer to a large baking dish.
  • Layer the caramelized onions over the sweet potatoes, spreading them evenly.
  • Sprinkle the freshly grated Parmesan cheese over the top.
  • Drizzle the rosemary-infused butter evenly over the sweet potatoes and onions.

Step 6: Final Bake

  • Return the baking dish to the oven and bake for an additional 10 minutes, or until the Parmesan is melted and golden brown.

Step 7: Serve and Garnish

  • Remove from the oven and let it cool for a few minutes.
  • Optionally, garnish with fresh chopped parsley and a light squeeze of lemon juice for added freshness.
  • Serve warm.

Cooking Note:

For the best results, ensure that the sweet potatoes are sliced evenly to promote uniform roasting. Caramelizing the onions slowly over medium-low heat is key to bringing out their natural sweetness without burning them. The rosemary-infused butter can be adjusted based on personal preference—feel free to add more garlic or herbs to suit your taste.

Serving Suggestions:

  • Pair this dish with roasted chicken, grilled steak, or baked salmon for a complete meal.
  • Serve it as a side dish at holiday gatherings like Thanksgiving or Christmas.
  • Consider adding a dollop of sour cream or Greek yogurt on top for extra creaminess.
  • It can also be a main course for a vegetarian dinner, served alongside a fresh green salad or sautéed greens.

Tips:

  • Slicing Sweet Potatoes: Use a sharp knife or a mandoline to ensure even slices. This will help with even cooking.
  • Caramelizing Onions: Be patient when caramelizing the onions—low and slow is the way to go. Stir them occasionally to avoid burning.
  • Parmesan Alternatives: For a twist, try using Pecorino Romano cheese instead of Parmesan for a saltier and sharper flavor.
  • Make-Ahead Option: You can prepare the caramelized onions and rosemary butter in advance. Store them in the fridge and reheat slightly before assembling the dish.
  • Extra Crispy: If you like extra crispy edges, broil the dish for 1-2 minutes at the end of baking.

Nutritional Information:

  • Calories: 220 per serving
  • Protein: 5g
  • Sodium: 350mg
  • Carbohydrates: 30g
  • Fat: 12g
  • Fiber: 4g

Conclusion:

Savory Sweet Potatoes with Parmesan, Caramelized Onions & Rosemary Butter are a perfect balance of flavors, making them a go-to dish for any gathering or family dinner. This recipe showcases the versatility of sweet potatoes, turning them into a savory delight with the earthy richness of rosemary, the nutty notes of Parmesan, and the depth of caramelized onions. It’s a comforting and satisfying side dish that’s easy to make and a sure crowd-pleaser. Enjoy this unique take on sweet potatoes, where each bite delivers a rich blend of flavors.

Print
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Savory Sweet Potatoes with Parmesan, Caramelized Onions and Rosemary Butter


  • Author: Imili Johnson
  • Total Time: 35 minutes

Ingredients

Scale
  • 4 large sweet potatoes, peeled and sliced into 1/4 inch rounds
  • 2 tablespoons olive oil
  • Salt and black pepper, to taste
  • 1 large onion, thinly sliced
  • 1 tablespoon butter (for caramelizing the onions)
  • 3 tablespoons butter (for rosemary butter)
  • 2 cloves garlic, minced
  • 1 tablespoon fresh rosemary, finely chopped
  • 1/2 cup freshly grated Parmesan cheese
  • 2 tablespoons fresh parsley, chopped (optional for garnish)
  • 1 tablespoon lemon juice (optional for a hint of acidity)

Instructions

Step 1: Preheat and Prep

  • Preheat your oven to 400°F (200°C).
  • Line a baking sheet with parchment paper or lightly grease it with olive oil.
  • Arrange the sweet potato rounds in a single layer on the baking sheet. Drizzle with olive oil, and season generously with salt and black pepper.

Step 2: Roast the Sweet Potatoes

  • Place the sweet potatoes in the preheated oven. Roast for 20-25 minutes, flipping halfway through to ensure even cooking. The edges should be golden brown and slightly crispy.

Step 3: Caramelize the Onions

  • While the sweet potatoes are roasting, heat a skillet over medium-low heat. Add 1 tablespoon of butter and allow it to melt.
  • Add the thinly sliced onions and a pinch of salt. Cook slowly, stirring occasionally, until the onions are golden brown and caramelized—about 20 minutes. Lower the heat if needed to prevent burning. Set aside once done.

Step 4: Prepare the Rosemary Butter

  • In a small saucepan, melt the remaining 3 tablespoons of butter over medium heat. Add the minced garlic and chopped rosemary, stirring frequently until fragrant, about 2-3 minutes. Remove from heat and set aside.

Step 5: Assemble and Bake

  • Once the sweet potatoes are roasted, remove them from the oven and transfer to a large baking dish.
  • Layer the caramelized onions over the sweet potatoes, spreading them evenly.
  • Sprinkle the freshly grated Parmesan cheese over the top.
  • Drizzle the rosemary-infused butter evenly over the sweet potatoes and onions.

Step 6: Final Bake

  • Return the baking dish to the oven and bake for an additional 10 minutes, or until the Parmesan is melted and golden brown.

Step 7: Serve and Garnish

  • Remove from the oven and let it cool for a few minutes.
  • Optionally, garnish with fresh chopped parsley and a light squeeze of lemon juice for added freshness.
  • Serve warm.
  • Prep Time: 20 minutes
  • Cook Time: 15 minutes

Nutrition

  • Calories: 220 per serving
  • Sodium: 350mg
  • Protein: 5g

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