Key Lime Pie

Steps

1. Mix4 min
   crumbs + butter + sugar, pressed firm
   • graham cracker crumbs
   • butter
   • sugar
   into the pan, up the sides, packed hard with the base of a measuring cup — a loosely pressed graham crust is sand by slicing time; packed, it cuts clean
2. Bake10 min
   350°F, the crust alone
   until fragrant and a shade darker — the pre-bake sets the butter and toasts the crumbs; skipped, the crust drinks filling and goes soggy from below
3. Whisk4 min
   yolks + zest first, then milk, then juice
   • egg yolks
   • lime
   • sweetened condensed milk
   in that order, and watch the trick: as the lime juice goes in, the mixture visibly thickens with no heat — the acid is curdling the condensed milk on purpose; this 'sopa' stage is the pie working, and the pinch of salt keeps all that sugar honest
4. Bake15 min
   350°F, until set at the edges, wobbly center
   the filling in the warm crust, briefly — the shortest bake in the catalog's pie chapter, just enough to set the yolks; overbaked key lime goes grainy and loses the silk the acid built
5. Rest210 min
   cool, then refrigerated at least 3 hours
   fully cold — this pie is served cold or not at all, and it slices best on day one after a proper chill; the flavor argument for overnight is real but the crust pays for it
6. Whisk4 min
   cream + powdered sugar to soft peaks
   • heavy cream
   • powdered sugar
   and spread or pipe over the cold pie — soft peaks, not stiff: the cream is a cool counterweight to the filling's acid, and overwhipped cream reads as frosting on a pie that doesn't want any