Instructions
Preheat the Oven
Set the Temperature: Begin by preheating your oven to 425°F (220°C). This ensures the oven is hot and ready for baking, which is crucial for getting the cheese to melt perfectly and the top to become golden brown.
Prepare the Butter and Onion
Melt Butter: In a large skillet, melt 2 tablespoons of butter over medium heat. This will form the base of the creamy sauce.
Sauté Onion: Add the minced onion to the skillet. Cook it over medium heat until the onion becomes soft and translucent. This usually takes about 5 minutes. The onion should be aromatic but not browned.
Add Garlic and Seasoning: Add the minced garlic, salt, and black pepper to the skillet. Cook for an additional 30 seconds, just long enough for the garlic to become fragrant.
Combine Ingredients
Add Liquids: Pour in the chicken stock and heavy cream, stirring to combine. This will create the base of your creamy sauce.
Add Potatoes: Gently stir in the sliced russet potatoes. The potatoes should be sliced thinly (1/8 inch thick) to ensure they cook evenly and absorb the flavors of the sauce.
Simmer the Potatoes
