Step 1

Preheat oven to 425°F and grease an 8x8-inch baking dish with butter.

Step 2

In a large pot over medium heat, melt the butter. Add onion and cook until soft and translucent, about 5 minutes. Add garlic and season with salt and pepper and cook 30 seconds more.

Step 3

Stir in stock, cream, and potatoes and bring to a low simmer, but do not boil. Cover and reduce heat to medium-low. Let cook until potatoes are tender, 15-20 minutes. Adjust seasoning as needed.

Step 4

Transfer mixture to baking dish, top with cheese and bake until bubbly and cheese has melted, 10-15 minutes.

Step 5

Serve garnished with parsley, if desired. Enjoy!