Does anyone have any suggestions for yummy food gifts to bring back that are authentic to Spain? More specifically, I will be shopping in Madrid and Barcelona mostly, and I'm looking for things that do not go stale or bad within a couple days and that will breeze through (US) customs. I guess sweets are probably more likely, but savory suggestions are welcome too. Store and/or brand suggestions would also be really helpful. I'm trying to avoid the paralysis that comes from staring at aisles and aisles of products. Thanks!