I had to create a set of cakes for a party I’m going to tonight. I know there will be at least one other Gluten sensitive person there. I think these would be quite marvelous for a tea dusted with some powdered sugar and served with fresh strawberries. I really do like egg-sponge cakes better than baking powder leavened cakes.
I adapted the Financier Cake here: http://frenchfood.about.com/od/frenchdessertrecipes/r/tradfinancier.htm
By substituting 1 c. flour with 1/4 cornstarch, 1/4 potato starch and 1/2 tapioca flour and 1/2 tsp. Xantham gum. Also I baked them in metal tart tins (well-greased with butter) for 12-14 minutes at 375 F.
Let the tins cool on a rack for about 5 minutes before removing the cakes. I found out that in a conventional oven it’s best to bake only 12 tins at a time and that the tins with the least amount of flat surface area actually released their cakes easily when tapped lightly.
I have to confess I think I broke two or three on purpose so I could eat the ‘rejects.’ Don’t know why I still have to do that.