Easy Sweet Potato Gratin recipe in a large black skillet next to a wooden spoon.

Herbed Sweet Potato Gratin

Author Heather Cheney


  • 1 lb russet potatoes peeled and thinly sliced
  • 1 lb sweet potatoes peeled and thinly sliced
  • 1 1/3 cups heavy cream
  • 3 tbsp butter
  • 1 clove garlic minced
  • 1/2 tsp dried rosemary
  • 1/2 tsp dried thyme
  • 1 tsp kosher salt
  • 1/2 tsp black pepper
  • 1 cup sharp cheddar grated


  • Preheat oven to 375.
  • In a 3 qt. oven-safe pan, heat cream, butter and garlic over medium heat and bring to a low simmer. Remove pan from heat.
  • Stir in salt, pepper, and herbs followed by the grated cheese.
  • Add potatoes to the pan, arranging the slices so that most of them can be submerged in the cream mixture.
  • Cover pan with a lid or foil and bake in the oven for 30 minutes. Remove cover and continue to bake until the top is golden and edges are crispy-- about 20 more minutes.
  • Allow to rest for 10 minutes before serving.