Bucatini with Sardines & Caramelized Fennel

This is sort of a simplified version of pasta con le sarde, a Sicilian dish that blends fennel and sardines with a flurry of other pantry ingredients, spinning any old tin of sardines into a pasta that would be worth traveling for. Some versions include pine nuts, capers, and currants. I personally like the sweetness of yellow raisins, and if you chop them before adding, their subtle sweetness will be distributed throughout the dish. I also like to double down on the flavors and textures of