Sweet Potato Gratin

Ingredients

• cooking spray
• 2 cups heavy cream
• cup unsalted butter
• 2 cloves garlic , minced
• 1 tablespoon chopped fresh parsley , or more to taste
• 1 tablespoon fresh thyme leaves , or more to taste
• 1 tablespoon minced fresh sage , or more to taste
• 1 tablespoon minced fresh rosemary , or more to taste
• 1.5 teaspoons sea salt
• 0.75 teaspoons ground black pepper
• 3 pounds sweet potatoes , peeled and thinly sliced
• 1.5 cups shredded Gruyère cheese

Instructions

1. 1

   Preheat the oven to 400 degrees F (200 degrees C). Coat a baking dish with cooking spray.

2. 2

   Combine cream, butter, and garlic in a saucepan; bring to a simmer. Off heat, stir in parsley, thyme, sage, rosemary, salt, and black pepper.

3. 3

   Arrange ½ sweet potato slices in the prepared baking dish; cover with ½ Gruyère cheese. Pour cream mixture on top. Arrange remaining ½ sweet potato slices over cream; sprinkle remaining ½ cheese on top.

4. 4

   Bake in the preheated oven until golden brown and bubbly, about 30 minutes.