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["Preheat oven to 350F and butter pans.", "Line bottom of each pan with wax or parchment paper and butter paper.", "Dust pans with flour, knocking out excess.", "Whisk together yolks, 1 1/2 cups sugar, milk, and vanilla in a large bowl until combined well, then whisk in flour and salt until smooth.", "(Batter will be thick.)", "Beat whites with an electric mixer until they hold soft peaks.", "With mixer at low speed, gradually beat in remaining 3/4 cup sugar.", "Increase speed to high and beat until whites hold stiff, glossy peaks.", "Fold about one third of whites into batter to lighten, then fold in remaining whites gently but thoroughly.", "Divide batter among pans and spread evenly.", "Rap pans against a work surface to release any air bubbles.", "Bake, 1 pan at a time, in middle of oven until cake is pale golden and beginning to shrink around edges, 10 to 11 minutes per pan.", "Cool layers completely in pans on racks.", "Loosen edges of 1 cake layer with a knife.", "Place a sheet of wax or parchment paper on top of layer and invert onto a rack.", "Carefully peel paper from cake.", "Place a new sheet of wax or parchment paper on inverted cake and reinvert onto work surface, peeling off paper that is now on top.", "Repeat with remaining 2 layers.", "With long side of layers toward you, halve layers vertically with a serrated knife.", "Spread 1 half of each layer (3 of 6 halves) with cranberry jam, then top with remaining plain halves.", "Put each ""sandwich"" crosswise into 10 (71/2- by 3/4-inch) strips.", "Arrange 1 strip vertically in trifle dish with a cut side against glass (see photo below), then trim strip flush with top of dish.", "Using trimmed piece as a guide, cut remaining strips to fit dish, reserving trimmings.", "Brush strips on all sides with Cognac syrup and fit strips tightly all around edge of dish.", "(If your dish is slightly smaller on bottom than on top, cut a few strips in half diagonally to fill any gaps.)", "Brush trimmings with syrup and arrange one fourth of them in 1 layer in bottom of dish.", "Pour in 1 cup custard.", "Repeat layering of trimmings and custard to fill dish, ending with custard.", "(You may have a small amount of custard left over.)", "Brush top of strips around edge with syrup.", "Cover trifle with plastic wrap and chill at least 8 hours.", "Beat heavy cream with confectioners sugar, Cognac, and vanilla with an electric mixer until it holds soft peaks.", "Remove plastic wrap from trifle and mound cream on top."]
