Recipes - desserts

I'm going to make this "Womania" layered cake on saturday, it has a layer of marcipan on top - but I saw on a food programme... "The Sweet life" that the confectioner was making a Rasberry cake with marcipan all around the edge. She mixed the marcipan with icing sugar and clucose syrup. This I have never used.

So my question is, will it be easier ro roll out, or is it because it makes it go a longer way?

Anyway, this is the cake I'm making:

http://www.arla.dk/da/opskrifter/womaniakage/

The pie plates of this cake are made like this:

3 egg whites
150 grams of sugar
75 g potato flour
60 g of wheat flour
1 teaspoon baking powder
3 egg yolks

When they are baked, you let them cool off and slice them into three. The fillings go in between those layers.

Can you buy them ready made in the US?