Mussel and Prawn Roulade with Caviar and Sous Vide Cauliflower Purée

1. To make the crust, place the scallop roe, salt and washed parsley in a food processor and pulse to a fine crumb before passing through a drum sieve.
2. To make the purée, vacuum pack the cauliflower and cook at 80˚C for 20 minutes until tender. Drain and purée in the food processor, adding the butter and cream and season to taste.
3. To make the mousse, place the salmon and prawns in the food processor and blend to a fine purée. Separate the egg and add the egg white and cream to the purée, mixing thoroughly.
4. Spread the mousse on a piece of cling film and arrange the scallops on top. Roll up to make a roulade before tightly tying the ends and poaching in a large pan of water at 60°C for 12-18 minutes to the desired finish.
5. Remove, unwrap the roulade and gently place it in a hot pan to colour. Then roll it in the crust mixture and cut it into portions.
6. Serve the sliced roulade with the cauliflower purée and the caviars.

From http://www.greatbritishchefs.com/recipes/scallop-prawn-roulade-recipe