Meringue (Sugar to Egg White, 2:1 by Weight)

1 part (e.g. 100 g, roughly 3 large whites)

Egg whites — Room temperature; any trace of fat (yolk, grease) collapses the foam

2 parts (e.g. 200 g)

Sugar — Caster/superfine for French; granulated for Swiss or Italian (it dissolves in heat); icing sugar adds cornstarch and can dull gloss

French: Whip whites to soft peaks, then gradually rain in sugar while whipping to firm, glossy peaks. Use immediately. Swiss: Combine whites and sugar in a bowl set over simmering water; stir to 60–70°C until sugar fully dissolves; transfer to mixer and whip to stiff, cool peaks. Italian: Dissolve sugar in water (roughly 30% water by sugar weight) and cook to 118–121°C; pour in a thin stream onto whites whipping at medium speed; increase to high and whip until cool, stiff, and glossy.

• Weigh everything: egg whites vary wildly by size; a scale is the only reliable tool.
• Add sugar too quickly or too early and the foam under-inflates; add it in a slow, steady stream once soft peaks form.
• A clean pinch of cream of tartar (⅛ tsp per white) lowers pH and strengthens the protein network, especially in humid kitchens.
• Meringue weeps (syneresis) when undissolved sugar crystals draw moisture out; rub a small amount between fingers — if gritty, keep whipping or switch to Swiss method.
• Bake French meringues at 90–100°C for 90–120 minutes to dry rather than cook; the interior should be dry, not gummy, when cooled.
• Italian meringue requires a candy thermometer: 118°C (soft-ball) for most uses; 121°C (hard-ball) for applications that need the firmest set.

• Soft meringue topping (1.5:1)

  Slightly less sugar for a pillowy, softer texture used on pies; less stable, must be browned and served quickly

• Dacquoise (nut meringue)

  Same 2:1 base; fold in equal weight of ground almonds or hazelnuts after whipping for the classic French layer-cake disc

• Japonais

  Swiss meringue base with finely ground blanched almonds; ratio tilts toward 2:1 meringue to nuts by volume

• Japanese cloud bread / soufflé pancake whites

  Uses a 1:1 or 1.5:1 ratio for a softer, less sweet aerated texture that retains moisture in the finished bake

• Pavlova meringue

  2:1 base plus 1 tsp white vinegar and 1 tsp cornstarch per 4 whites; vinegar stabilises, cornstarch creates the marshmallow interior

• Italian Meringue (Sugar Syrup to Egg White)

  Specifies the hot-syrup variant; same overall 2:1 sugar:white but with water added to the sugar to make a pourable syrup

• Aquafaba Meringue Ratio

  Replaces egg whites with chickpea liquid at similar volume; same sugar ratio applies

• Soufflé (Egg White to Base)

  Uses unsweetened beaten whites folded into a flavoured base; structural principle is shared

1. 1.The Professional Pastry Chef — Bo Friberg
2. 2.On Food and Cooking: The Science and Lore of the Kitchen — Harold McGee
3. 3.Modernist Cuisine: The Art and Science of Cooking — Nathan Myhrvold et al.
4. 4.Baking and Pastry: Mastering the Art and Craft — The Culinary Institute of America

Confidence: high