Pecan Pignoli

I have always loved pignoli and was looking for a way to get rid of some extra pecan halves that had been in my freezer for nearly a year. My parents send me a large bag from Texas every Christmas, and I never manage to use them all before the next bag arrives. The recipe I tried to adapt, though, did not seem to have enough internal strength to hoist a full pecan half, as the end result sagged and flattened rather than puffing into a chewy dome as happens when using pine nuts (which are much smaller and lighter).