South African Pepper Steak Pie
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South African Pepper Steak Pie
The South African garage pie, made as a full pie in a glass dish. Three collagen-rich cuts are braised for 3.5 h. The braising liquid sets to a firm jelly overnight, so the filling goes into the pastry cold and solid. A blind bake, an egg-white seal and a layer of breadcrumbs keep the base crisp. Black pepper goes in twice: at the sear and into the finished filling. Paper strips under the pastry lift the whole pie out of the dish.
Mechanisms
threeM1
The gelatin is the structure of the filling 150 °C oven 3.5 h covered 93 °C → 96 °C in the meat overnight in the refrigerator
Oxtail, shin and short rib all hold a lot of collagen. Collagen converts to gelatin slowly from 70 °C and much faster above 80 °C. The long braise dissolves it into the liquid.
Below approximately 40 °C, dissolved gelatin sets to a gel. So the chilled liquid sets to a firm jelly, and the fat rises and sets as a cap that lifts off in one piece.
The cold filling goes into the pastry as a solid. A solid filling gives off less steam and no free liquid while the base sets. In the oven the gel melts again and becomes the gravy.
This is why the filling must be cold, not warm, when the pie is assembled.
M2
Three barriers keep the base crisp 220 °C 15 min with beans 190 °C 5 min without egg white 2 min at 190 °C 200 °C lowest shelf 15 min 180 °C middle shelf 40 → 50 min
Puff pastry takes up water fast because it is thin layers of dough and butter. The base needs three barriers.
Blind bake. Heat drives water out of the pastry and sets the starch into a rigid structure before the filling touches it.
Egg white. Egg white proteins set from approximately 62 °C into a thin film that water does not easily cross. Brush it on the hot base so it sets at once.
Breadcrumbs. Dry crumbs take up the first liquid that meets the base.
The frozen assembled pie then goes into a hot oven on the lowest shelf. The butter in the pastry is still solid, so its water turns to steam and lifts the layers. The base gets direct heat before the filling warms enough to give off steam.
M3
Reduce the merlot before the meat goes in
Reducing the wine by half in the open pot boils off most of the alcohol and concentrates its acid, sugar and tannin. In the closed braise the alcohol cannot leave, and a raw wine taste stays in the gravy.
Wine tannins bind to protein. Against the fat and gelatin of the filling they read as structure, not as bitterness.
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