Creamy Au Gratin Potatoes with Kale and Gruyere

Creamy Au Gratin Potatoes with Kale and Gruyere
With a rich sauce, crisp golden crust and a layer of creamed kale, this twist on au gratin potatoes is surprisingly simple. It's assembled and baked in just one pan and can be made ahead and baked just before serving.
Ingredients
- 1 1/2 Cup Heavy cream
- 1/2 Teaspoon Salt
- 1/2 Teaspoon Black pepper
- 2 Cloves Garlic, smashed
- 3 Sprigs Fresh thyme
- 2 Tablespoons Butter
- 3 Clove Shallots, diced
- 4 Large kale leaves, finely chopped
- 2 Pounds Alsum red potatoes, 1/8 inch slices
- 1/4 Cup Gruyere cheese, grated
- 1/8 Cup Parmesan cheese, grated