1: Steam 4 globe artichokes. When cold, peel off the leaves. Scrape the flesh from the leaves with a small spoon and put in a bowl. Discard the fibrous choke and dice the heart. Add to the bowl. Prepare all the artichokes like this (yes, I know it's tedious).
3: Melt 20 g butter in a saucepan over medium heat. When good and hot, add the sliced onion, salt and pepper. Cook for 1 or 2 minutes without colouring.
4: Add the artichokes, mix well and sauté for 3 or 4 minutes, stirring from time to time.
8: Put the grill (broiler) on to heat up. Divide the purée out into ramekins.
9: Sprinkle breadcrumbs on top.
10: Put under the grill for 5 to 7 minutes, just until the top is nicely browned. Serve without delay.
Remarks
If you don't have cancoillotte, use another soft cheese, such as Mont d'Or, or a more easily available soft-paste cheese, cut into small cubes. You can mix a little grated Comté cheese into the breadcrumb topping.