Romanesco cauliflower and celeriac filled with puree and gratinated in the oven? Remove the inner part of the cauliflower and celeriac. Put the remaining cups on baking paper or in an oiled dish. Brush some olive oil mixed with chopped fresh rosemary on the in-and outside. Bake in the oven at 180° for 30-40 mins … More Teenagers in the house for a few days, different creativity ;-)!