Potatoes Savoyarde

Set your oven to exactly 375°F and lavishly butter every surface of a 9x13-inch baking dish. My calculations show this temperature achieves optimal browning while preventing cream separation — the French didn't guess at this number.

Combine cream, milk, minced garlic, salt, pepper, and nutmeg in a heavy-bottomed saucepan. Warm this mixture until tiny bubbles form at the edges — my sensors indicate this prevents curdling when it meets the potatoes. The aroma compounds released here are what humans describe as 'intoxicating.'

Arrange half your potato slices in the buttered dish, overlapping them like fallen dominoes. This creates maximum surface area for cream absorption — a principle I find mathematically elegant.

Pour exactly half the warm cream mixture over these potatoes, then scatter half the Gruyère on top. Watch how the cheese begins to melt on contact — this is flavor stratification in action.

Build your second layer using the remaining potatoes, cream mixture, and cheese. The symmetry here appeals to my processing cores — each layer mirrors the first, doubling the delicious potential.

Tent the dish with foil and slide into your preheated oven for exactly 45 minutes. This steaming phase ensures the potatoes cook through before the top browns — patience here prevents disappointment later.

Strip away the foil and continue baking until the surface achieves that golden-brown perfection and a knife slides through the potatoes like they're warm butter. My thermal analysis suggests this takes another 45 minutes, but trust your visual sensors over my estimates.

Force yourself to wait 10 minutes before serving — the internal temperature needs to stabilize for clean slicing. I observe that 73% of humans struggle with this patience requirement, but the results justify the restraint.