Believe it or not, it IS possible to eat a lappa where the jam is stapped in a big clump in the middle.
Take a look at this:

You should know one thing, the whole procedure gets even more complicated when eating it like this. Anyway, skilled lappa-eaters from all around the world found this the best way to eat a lappa, so here is how to perform it:
Step 000001: You should begin on the outside, and slowly eat yourself into the middle of the lappa, step by step. Then you get a perfect balanced taste experience. A little bit of lappa, a little bit of jam. Ahh!
That was only one step... good luck. More weight, feel great.