Custards, creams & meringues
pot de crème
pot de crème · A French stirred custard cooked on the stovetop to a quivery, spoonable set. Unlike baked custard, it is never placed in the oven; the egg and cream mixture is cooked directly over gentle heat until it coats a spoon. It is by definition unthickened by starch; egg proteins alone provide the structure.
The formula
1 part egg yolk : 6 parts heavy cream (by weight); 10–15% sugar; 1 vanilla bean per 500 ml cream
Weight is more reliable than volume. The yolk-to-cream ratio governs the set: higher yolk gives firmer custard, lower gives looser. The target temperature is 82–85 °C (185 °F)—protein strands link just enough to trap fat droplets without squeezing out water.
Identity
- Egg yolks and cream only—no starch, no flour, no gelatin
- Cooked on the stovetop to 82–85 °C (185 °F), never baked
- Sets to a soft, quivery spoonable consistency, not a firm demolded custard
- Flavored with vanilla bean (the classical and defining reference)
- Strained through a fine-mesh sieve before portioning
Ingredients
| Base | heavy cream (35% fat) | Full-fat cream is non-negotiable. Lower fat reduces the richness and the emulsification of fat droplets that gives the silky mouthfeel. |
| Base | egg yolks | 4–5 yolks per 500 ml cream. Yolks provide lecithin emulsifier, proteins for structure, and the characteristic golden color and flavor. |
| Liquid | whole milk (optional, partial cream substitute) | Up to one-third of the cream may be replaced with milk for a lighter version; do not exceed this or the custard will be watery. |
| Binder | caster sugar | 10–15% of total liquid weight. Sugar contributes sweetness, lowers the coagulation temperature (protecting against overcooking), and interferes with protein bonds for a smoother texture. |
| Flavor | vanilla bean | One standard pod per 500 ml cream. Scrape seeds and infuse in scalded cream. Vanilla is the reference flavor; other aromatics are variations. |
| Seasoning | fine sea salt | A pinch (about 1 g per 500 ml liquid) heightens all flavors and masks any eggy edge. |
Method
- 1Infuse the cream: combine cream, split vanilla bean, and scraped seeds in a saucepan over medium heat. Bring to a full scald (just before boiling, 85–90 °C / 185–195 °F). Remove from heat, cover, and steep 15 minutes.Steeping extracts vanilla compounds (vanillin) into the fat phase, where they dissolve best. Scalding denatures surface proteins on the cream, preventing a skin during chilling.
- 2Whisk yolks and sugar: in a bowl, whisk yolks and sugar until pale, thick, and the mixture falls in a wide ribbon when lifted (about 1–2 minutes).Aeration incorporates tiny air bubbles that help buffer the temperature during cooking, reducing risk of overcooking. The ribbon stage ensures sugar is fully dissolved.
- 3Temper: pour the hot cream into the yolk mixture in a thin, steady stream, whisking constantly and briskly.Gradual temperature equalization prevents sudden coagulation and curdling. Rapid, constant agitation mechanically disrupts forming protein networks.
- 4Cook the custard: transfer the tempered mixture back to the clean saucepan. Cook over very low heat (or in a bain-marie), stirring continuously with a silicone spatula in a figure-8 pattern, until the custard reaches 82–85 °C (185 °F) and coats the back of a spoon thickly enough to leave a trail when a finger is drawn through.82–85 °C is the gelation threshold for egg yolk proteins in a cream medium. Below this, the custard will not set; above it, proteins tighten excessively, squeezing out whey and producing a rubbery texture.
- 5Strain and portion: strain through a fine-mesh sieve into a pitcher. Skim any foam. Pour immediately into 6–8 prepared ramekins or pots placed in a roasting pan.Straining removes any coagulated egg bits (from over-tempering) and vanilla fragments. Skimming foam prevents a grainy layer on the surface when chilled.
- 6Chill: cover each pot tightly with plastic wrap pressed directly onto the surface to prevent skin formation. Refrigerate for a minimum of 4 hours, preferably overnight.Pressing wrap to the surface eliminates air contact and the dried skin that forms from protein oxidation. Full chilling allows the protein network to set fully and the flavors to meld.
Techniques that matter
Tempering
Raising the yolk temperature gradually prevents sudden protein coagulation. Rushing this step produces grainy, curdled custard.
Low-temperature stovetop cooking (or bain-marie)
Direct high heat creates hot spots that overcook the custard bottom before the bulk reaches serving temperature. A bain-marie or very low heat provides even, controlled warmth.
Spindle-coating test (finger test)
At 82–85 °C, the custard coats a spoon thickly enough that a finger drawn through leaves a clean trail. This is the empirical indicator of proper set without overcooking.
Straining through fine-mesh sieve
Catches any prematurely coagulated egg protein and vanilla bean pieces, ensuring a perfectly smooth texture in the finished custard.
Variations & derivatives
chocolate pot de crèmeFrance / universal
Add 100–150 g finely chopped dark chocolate (70% cocoa) to the hot cream; stir to melt before tempering yolks. The fat in chocolate strengthens the emulsion; reduce cream by 30–50 ml to compensate for added solids.
coffee pot de crèmeFrance
Steep 15–20 g coarsely ground dark-roast coffee in the hot cream for 10 minutes, then strain. Or add 30 ml (2 tbsp) high-quality espresso to the tempered custard before cooking.
Earl Grey pot de crèmeFrance / modern bistro
Steep 6–8 g (2–3 tsp) loose Earl Grey tea leaves in the scalded cream for 12 minutes. Bergamot oil is fat-soluble; steeping in cream extracts the aromatic compounds more effectively than adding extract.
caramel pot de crèmeFrance
Prepare a dry caramel with 100 g sugar, then deglaze with 120 ml warm cream (carefully—it will boil violently). Add remaining cream and proceed. Caramel adds both bitter-sweet flavor and inverted sugars that keep the texture smooth.
praline pot de crèmeFrance
Blend 80 g hazelnut praline paste into the finished custard after straining. Praline adds oil-in-water emulsion stability and intense nutty sweetness.
citrus pot de crèmeFrance
Add finely grated zest of 1 lemon or 1 orange to the cream before scalding. Steep 10 minutes, then strain. Citrus oils are soluble in cream fat and contribute bright aromatic contrast.
Used in these dishes
Substitutions
- heavy cream (35% fat) → half-and-half or 18% coffee cream — Viable for a lighter custard but reduces richness and emulsion stability. Increase sugar by 5% to compensate for lower fat.changes result
- egg yolks → whole eggs — One whole egg (~50 g) can replace one yolk (~20 g) in an emergency, but the custard will be firmer and less rich. Not equivalent for classical identity.changes result
- caster sugar → inverted sugar (glucose syrup or honey) — Partially substituting inverted sugar (up to 30% of total sweetener) produces a smoother, more stable texture by preventing sugar crystallization. Flavor changes.changes result
Troubleshooting
Custard is grainy, curdled, or has white specks
Temperature of yolks rose too quickly during tempering or cooking, causing protein coagulation into tight clumps → Always pour cream in a thin, steady stream while whisking rapidly. Cook over very low heat or in a bain-marie. If curdled, immediately strain through fine mesh; the smooth portion can often be salvaged.
Custard is too loose and won't set
Undercooking (below 80 °C / 176 °F) or insufficient egg yolks; the protein network never developed enough to gel → Return the unstrained custard to low heat and continue cooking, stirring, to 82–85 °C. If the ratio was the problem, the only fix is to use the mixture as a sauce (crème anglaise style) rather than a set custard.
Custard is rubbery, dense, or has a tough skin
Overcooking above 87–90 °C; proteins tightened excessively and squeezed out water (weeping), leaving a tough matrix → Prevention is the only reliable cure. If already overcooked, the custard cannot be restored to proper texture; serve as a loose sauce or use in baking where firm texture is acceptable.
Skin forms on surface during chilling
Exposure to air causes surface proteins to oxidize and dry → Press plastic wrap directly onto the surface of each pot before refrigerating, eliminating all air contact.