Fellow “quester” Stephen sent me a picture of two bottles of limoncello that he made. One was made with my standard recipe, the other with Giada’s recipe. It makes a point that I totally forgot to make in my review. The lack of filtration in the Giada recipe will make for scummy-looking limoncello. You can see the film developing on the top of the Giada limoncello below (Giada’s is on the right). It looks like a piece of lemon peel in the bottle but it’s actually a ring of gunk that results from insufficient filtration.
In that respect, it’s actually a poor recipe for gift-giving. I definitely should have mentioned that. However, you could use the same recipe and filter it via my method. That would give you a gift quality limoncello that won’t embarrass you.