Print
clockclock iconcutlerycutlery iconflagflag iconfolderfolder iconinstagraminstagram iconpinterestpinterest iconfacebookfacebook iconprintprint iconsquaressquares iconheartheart iconheart solidheart solid icon

Homemade Garlic Butter Sweet Potato Bake Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

3.9 from 47 reviews

A creamy and flavorful Garlic Butter Sweet Potato Bake featuring thinly sliced sweet potatoes baked in a rich garlic-infused butter and cream sauce, topped with fresh parmesan cheese for a golden, bubbly crust. This comforting casserole is perfect for an elegant side dish or a cozy family meal.

  • Total Time: 1 hour
  • Yield: 8 servings

Ingredients

For the creamy sauce:

  • 1 tsp cornstarch
  • 1 1/2 cups heavy cream
  • 1/2 cup (1 stick) butter
  • 5 cloves garlic, finely minced
  • 1 tbsp chopped fresh thyme
  • Kosher salt, to taste
  • Freshly cracked black pepper, to taste

For the sweet potato bake:

  • 3 lb sweet potatoes, peeled and sliced thin (about 1/8-inch thick)
  • 1/3 cup fresh parmesan cheese, grated
  • Butter (for greasing dish; take a small amount from the 1/2 cup in the list above)

Instructions

  1. Preheat Oven and Prepare Baking Dish: Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with a small amount of butter or a quick spray of nonstick spray to prevent sticking. Set the prepared dish aside until ready to assemble the gratin.
  2. Make Creamy Sauce: In a small saucepan over medium-low heat, whisk the cornstarch into the heavy cream until fully combined. Add the butter, minced garlic, chopped fresh thyme, kosher salt, and freshly cracked black pepper. Heat the mixture, stirring frequently, until the butter is melted and the cream mixture is hot but not boiling. Remove from heat and let the garlic infuse into the cream for deeper flavor.
  3. Assemble and Begin Baking: Arrange the thinly sliced sweet potatoes evenly in the greased baking dish, shingling the slices for even cooking. Pour the hot cream mixture evenly over the sweet potatoes, ensuring they are well coated. Transfer the dish to the preheated oven and bake for 30 minutes.
  4. Add Cheese and Finish Baking: After 30 minutes, carefully remove the dish from the oven and sprinkle the grated parmesan cheese evenly over the top. Return the dish to the oven and bake for an additional 10 minutes, or until the cheese is golden and bubbly. Optionally broil for the last 1-2 minutes to crisp the cheese, watching carefully.
  5. Cool and Serve: Remove the gratin from the oven and let it rest for about 10 minutes before slicing and serving. This resting time allows the sauce to thicken and makes the bake easier to serve. Enjoy your creamy, garlicky, cheesy sweet potato dish!

Notes

  • Use a mandoline slicer for uniformly thin sweet potato slices to ensure even cooking.
  • Do not boil the cream sauce; keep it gently heated to avoid curdling.
  • You can customize the herbs by substituting thyme with rosemary or sage for different flavor profiles.
  • If you want a crispier top without broiling, add extra parmesan cheese before finishing baking.
  • Leftovers can be stored covered in the refrigerator for up to 3 days and reheated gently.
  • Author: Adeline
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Find it online: https://flavorhug.com/homemade-garlic-butter-sweet-potato-bake-recipe/