I hadn't but here it is. The only thing that really needed changing with this was the sponge and I use a basic whisked sponge minus the crispy sugar coating. A bit odd to handle but it doesn't matter anyway as it will get soaked in coffee and booze anyway.
Sponge Cake
Unsalted butter (for greasing)
4 ozs almond flour
1teaspoon baking powder
1/4 teaspoon salt
About 1/8 teaspoon cream of tartar
1 teaspoon of vanilla extract OR you can go half and half with vanilla and almond extracts
6 large eggs - separated and at room temperature
Sweetner depends on your taste I used about 6 tablespoons of Splenda or Xylitol.
Method
Prep your tin. I use a rectangular tin as it makes it easier for layering. Swiss roll tin is good.
Grease with the butter - enough to get greasproof paper to stay in place then grease the greasproof. Seems daft but it sticks otherwise. You need to raise the edges of your greasproof to make it box like and stop the mix escaping hence the Swiss roll tin.
Put the almond flour, baking powder and salt in one bowl mix and set aside.
Beat the egg yolks with the Sweetner in another bowĺ using an electric mixer (I have a 41 year old Kenwood Chef that makes short work of it). You want to beat until they are light and fluffy. Then mix in the extract (s) , cream of tartar and fold in the flour mix.
Clean bowl and whisk the egg whites into stiff peaks. Fold the stiff egg whites into the other mix using a metal spoon and taking care not to knock all the air out of it. It has to be mixed through otherwise you end up with bits in your cake.
Tip it into your prepped tin or tins - depends on size. Bake at 180c fan / gas m 4 for about 20 - 25 mins. Just keep an eye on it. Once it feels springy it is ready.
You need to let it cool before using for the tiramisu.
I know it sounds a lot of faffing about but once you get used to the whisked sponge method is it quick and easy.
Part 2 to follow