▶What are the basic pastry doughs and when do I use each?
Pâte brisée (shortcrust) is 3:2:1 (flour:butter:sugar) and is crumbly, tender, and used for tarts and cookies. Pâte sucrée is pâte brisée plus an egg yolk, making it more enriched and slightly sweeter. Pâte sablée is heavily buttered (almost 1:1 with flour) and very crumbly, used for cookies. Pâte dough is made with a roux-like base and is sturdy for blind-baking. Laminated doughs (croissants, danish) use butter folded into the dough 3 to 6 times to create layers. Choux is a different base (butter, water, flour, eggs) used for éclairs and profiteroles. Each dough has a specific purpose and technique. Learn the basic doughs first (brisée, sucrée), then advance to lamination and choux.
▶How do I make ganache and why does it break?
Ganache is equal parts chocolate and cream (by weight), heated and mixed together. Heat cream to a simmer, pour over chopped chocolate, let sit 30 seconds, then whisk smooth. The result is a silky, glossy emulsion. Ganache is used as a glaze, filling, or frosting. Ganache breaks when the chocolate and cream separate, resulting in a grainy, separated texture. Breaks happen when: cream is too hot (breaks the emulsion), cream is too cold (ganache sets before emulsifying), or you overmix (agitation breaks the emulsion). To fix a broken ganache, slowly add a bit of warm cream and whisk gently, or start fresh and slowly add the broken ganache to a new batch. Temperature is critical: ganache should be 100 to 104 degrees Fahrenheit when pouring, smooth and pourable.
▶What is tempering chocolate and how do I do it without a tempering machine?
Tempering is heating, cooling, and reheating chocolate to align the cocoa butter crystals into a stable form so the chocolate sets with a snap and a glossy finish. Untempered chocolate is dull and has a grainy texture or bloom (white streaks). To temper without a machine: (1) chop chocolate and heat 2/3 of it to 110 to 120 degrees Fahrenheit (melted but not hot), (2) remove from heat and add the remaining chopped chocolate (the cold chocolate cools down the melted chocolate), (3) stir until the temperature drops to 80 degrees Fahrenheit (chocolate is thickening), then (4) gently reheat to 88 to 90 degrees Fahrenheit (the working temperature for dipping). The chocolate is now tempered and ready to dip or pipe. If the chocolate gets too thick, warm it slightly (2 to 3 degrees) to flow again.
▶How do I make a stable mousse that does not collapse?
A mousse is lightness through incorporating air: typically a flavored base (chocolate ganache, fruit purée, pastry cream) folded with whipped cream and/or whipped egg whites. The structure depends on the ratio and technique. A chocolate mousse is 1 part chocolate ganache, 2 parts whipped cream. Whip the cream to soft peaks (not stiff, or the mousse will be grainy), then gently fold in the ganache in thirds to maintain airiness. Over-folding breaks down the structure. For stability, you can add a bit of gelatin (1 to 2 grams per 500ml mousse) bloomed in water and warmed, then folded into the warm ganache before folding in cream. A stabilized mousse will hold shape for 24 hours refrigerated; an unstabilized mousse is best served the same day.
▶How do I make crème pâtissière without lumps?
Crème pâtissière (pastry cream) is a custard thickened with cornstarch: heat milk with vanilla, whisk egg yolks with sugar until pale, add cornstarch to the yolks, then slowly temper the yolks by whisking in a bit of hot milk (preventing the eggs from scrambling). Pour the yolk mixture back into the hot milk and whisk constantly over heat for one to two minutes until the cream thickens. The key to avoiding lumps is constant whisking and gradual tempering. If lumps do form, strain the finished cream through a fine-mesh sieve. Cool the cream by pressing plastic wrap directly on the surface to prevent a skin from forming. Crème pâtissière is used as a filling for tarts, eclairs, and cakes.
▶How do I get a smooth, even cake crumb and what is the difference between butter cake and foam cake?
A smooth cake crumb comes from proper mixing (not overmixing), even baking temperature, and not overbaking. Butter cakes (pound cake, devil's food) use the creaming method: cream butter and sugar together to incorporate air, then add eggs and alternately add flour and milk. Mixing too much develops gluten, making the cake tough. Foam cakes (sponge, angel food) use whipped eggs or egg whites to incorporate air instead of creaming butter, resulting in a lighter, spongier texture. Angle food is 100 percent foam (no butter); sponge is usually a mix of butter and foam. For smooth crumb, use proper ratios, do not overmix, and bake at an even temperature (350 to 375 degrees Fahrenheit) until a toothpick inserted in the center comes out clean, but do not overbake (overbaking dries out the crumb).
▶How do I plate a dessert that looks restaurant-quality?
Plate composition should balance height, color, and negative space. Use a main element (the cake or tart), a sauce or coulis (for color and flavor), a garnish (quenelle of mousse, tuile, edible flower), and one or two accent elements (candied zest, praline dust). Place the main element off-center, then paint the sauce artfully (swoosh, dots, smear) around it. The negative space (empty plate) should be balanced: not too sparse (looks unfinished) and not too crowded (looks cluttered). Temperature matters: cold elements (mousse) on cold plates, warm elements (soufflé) on warm plates. Cleanliness is essential: wipe the rim of the plate before serving. Most restaurant desserts are composed of 2 to 4 components, not overcomplicated. Less is more: five perfect elements beat ten mediocre ones.
