-
1
Preheat the oven to 400 degrees.
-
2
Select a jellyroll pan measuring about 10 by 15 inches.
-
3
Cut a rectangle of heavy-duty aluminum foil to fit inside the pan with an overlapping margin of about one inch all around.
-
4
Place the foil inside the pan, shiny side up.
-
5
Carefully fold the overlapping edges of foil around the pan to keep it firmly in place.
-
6
Put the one teaspoon of butter in the pan and place the pan in the oven until butter melts.
-
7
Brush this melted butter over the foil-lined bottom.
-
8
Melt the remaining one-quarter cup of butter in a saucepan and add the flour, stirring with a wire whisk.
-
9
Add the milk, stirring rapidly with the whisk, and cook until thickened and smooth.
-
10
Simmer, stirring, about one minute.
-
11
Put the egg yolks in a small mixing bowl and beat well.
-
12
Add a little of the hot sauce to the yolks, beating constantly.
-
13
Off the heat, add this mixture to the sauce, stirring constantly.
-
14
Add the salt to the egg whites and beat until they are stiff.
-
15
Fold them into the sauce.
-
16
Pour the batter into the pan and smooth over the top.
-
17
Bake 15 to 18 minutes or until the cake rebounds to the touch and is golden brown on top.
-
18
If the cake splits on top, don't worry.
-
19
It will seal itself once it cools.
-
20
After cooling, turn the cake out onto a clean dish towel.
-
21
Carefully remove and discard the foil.
-
22
The cake is now ready to be spread with a filling and folded.
