I have some foodie friends coming for dinner. I want to do something impressive, delicious, seasonal, easy / prepped in advance, and if possible, the sort of thing you could only do if you have access to a wonderful French market and food shops (which I do). I do not have an oven, but I do have a hob and a microwave. The main course will be duck breasts in blackberry sauce, with green beans and little tians of potato bought from the local traiteur. Pudding will be something from the patisserie. There will also be cheese. What can I do to start with?