
Few dishes are as quietly showstopping as a perfectly executed potato cake, and this classic French preparation delivers exactly that. Layers of thinly sliced Yukon Golds are built up with clarified butter, fresh thyme, and a careful hand, then baked until the whole thing is tender inside and deeply golden on the outside. The invert at the end is genuinely satisfying — that crisp, lacquered top is the payoff for every careful layer you built going in. For anyone navigating a celery allergy or intolerance, this recipe is a natural fit because the ingredient list is refreshingly short and entirely free of the hidden culprits that sneak into so many potato side dishes, like spice blends, stocks, or seasoning mixes that often contain celery seed or celery salt. Every component here is straightforward: potatoes, butter, thyme, salt, and a little parsley to finish. The clarified butter technique is worth the extra few minutes — it gives the crust a richness and crispness that regular melted butter simply can't match. Serve it in wedges alongside roasted meat or a simple salad and watch it disappear fast.
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Preheat the oven to 425°F (220°C). Melt the butter in a small saucepan over low heat, then let it sit undisturbed for 2 minutes. Skim the white foam from the surface and carefully pour the clear golden liquid into a small bowl, leaving the milky solids behind — you should have about 4 tbsp clarified butter.
Using a mandoline or a sharp knife, slice the peeled potatoes into rounds approximately 1/8-inch (3mm) thick. Do not rinse or soak the slices — the surface starch helps the layers bind.
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