The garniture forestière (‘of the forest’) celebrates the wild mushroom bounty of France’s woodlands, composing a garnish of mixed sautéed mushrooms, lardons, and potatoes that evokes the rustic abundance of la chasse and autumn foraging. In the strict classical canon, the garnish specifies: morëlles (morels), cèpes (porcini), chanterelles, and cultivated mushrooms in combination, sautéed separately then united. Each mushroom species demands specific treatment: morels are halved lengthwise and soaked in several changes of water to dislodge grit from their honeycomb cavities, then sautéed in butter with a splash of Madeira; cèpes are sliced thick and cooked over fierce heat in olive oil; chanterelles are torn rather than cut and cooked gently in butter until their liquid evaporates and they begin to colour; cultivated mushrooms are quartered and sautéed hot and fast. The lardons follow bourguignonne protocol: blanched, then rendered until golden. The potato element traditionally calls for pommes noisette (small balls scooped with a melon baller and sautéed in clarified butter until golden throughout) or pommes château. In practice, the mushroom selection adapts to seasonal availability — autumn brings cèpes and chanterelles, spring offers morels and mousserons, summer provides girolles. The key principle is textural and flavour contrast between mushroom varieties. A fine chiffonade of flat-leaf parsley and sometimes a squeeze of lemon finish the garnish. Dishes à la forestière pair naturally with game, veal, and chicken, where the earthiness of the mushrooms complements rather than overwhelms the protein.
Each mushroom variety cooked separately using its ideal method. Morels must be thoroughly cleaned of grit. High heat for cèpes, gentle heat for chanterelles. Lardons blanched then rendered. Seasonal adaptation of mushroom selection is expected and traditional.
Soak morels in warm water three times, lifting them out each time rather than pouring through a sieve, which redeposits grit. Cook chanterelles dry first to evaporate their considerable moisture, then add butter. A dash of soy sauce (not traditional but effective) deepens the umami of the combined mushrooms.
Cooking all mushroom varieties together in one pan. Insufficiently cleaning morels. Using low heat for cèpes, producing steamed rather than seared texture. Adding all mushrooms to a crowded pan. Using canned mushrooms.
Le Guide Culinaire (Escoffier)