Meringue Française is the simplest and most fundamental of the three classical meringue types, produced by whipping raw egg whites with sugar at room temperature. The standard ratio is 1 part egg whites to 2 parts sugar by weight — 100 g whites to 200 g sugar — though the sugar is often split between caster sugar (added during whipping) and icing sugar (folded in at the end) for a finer, more stable texture. The process begins with egg whites at room temperature in a scrupulously clean, grease-free bowl — any trace of fat reduces foaming capacity by up to 70%. Whites are whipped at medium speed to soft peaks, then caster sugar is added in a slow, steady stream while the mixer runs at high speed. This gradual incorporation allows the sugar to dissolve into the protein film surrounding each air bubble, increasing viscosity and stabilizing the foam. Once firm, glossy peaks form and the meringue feels smooth between the fingers with no graininess, the icing sugar is sifted over and folded in gently. French meringue is inherently less stable than Italian or Swiss varieties because the whites are uncooked — the protein network holding the air cells is not thermally set, making the foam prone to weeping and deflation if left standing. It must therefore be shaped and baked promptly. Baking typically occurs at 90-100°C for 1.5-3 hours, depending on size, until the shells are dry, crisp, and lift cleanly from the parchment. The low temperature drives off moisture without caramelizing the sugar, yielding a pure white shell. Higher temperatures (120-130°C) produce a slightly ivory, chewier meringue with a thin crust and marshmallow-like interior.
Use a 1:2 ratio of egg whites to total sugar for structural stability; add caster sugar in a slow stream at high speed after soft peaks form; ensure the bowl and whisk are completely free of grease or yolk residue; shape and bake immediately — French meringue deflates rapidly if left idle; bake at 90-100°C for dry, white shells or 120-130°C for chewy, ivory-toned results.
Age egg whites uncovered in the refrigerator for 24-48 hours — the slight protein degradation increases foaming capacity and final volume; wipe the bowl with lemon juice or white vinegar before whipping to neutralize any trace fats; for uniform shells, pipe using a template drawn on the underside of parchment; after baking, turn off the oven and leave the door ajar to cool slowly — this prevents cracking from rapid temperature change.
Adding sugar too early or all at once, preventing proper aeration and yielding a syrupy, flat meringue; using cold egg whites, which foam more slowly and reach lower volume; failing to check for grease contamination in the bowl; opening the oven door during baking, causing thermal shock and cracking; baking too hot, which browns the exterior while the interior remains moist and eventually collapses.
Escoffier, Le Guide Culinaire; Hermé, Macarons; McGee, On Food and Cooking