I love gratins, not only in winter. As for many recipes there are rich versions, and less rich versions. My preference is obvious, the less rich versions, but still ‘gratin’. For 2p, cut 2 fresh fennels, 2 sweet potatoes (approx 300-350 grams in total) and 1 large onion in slices of 0.5cm. Put the slices … More Gratin