Preheat an oven to 180°C / 160°C Fan / Gas mark 5.
To make the potato bases cut 10 x 1cm thick, even slices from the potato. Use a 3cm scone cutter to make discs if you want a very neat presentation. If not you can trim the potatoes into cylinders or even squares, as you like.
Line a baking dish with greaseproof paper. Neatly place the potato slices on the greaseproof and then brush with melted butter, pouring any unused butter around the potatoes. Season the potatoes well with salt and pepper.
Line a second baking dish with greaseproof (baking) paper and put in the chipolatas and the olive oil.
Put both dishes in the oven. After 15minutes turn over the potatoes in their dish, and add the little stuffing balls to the chipolatas. Allow them both to bake on for another 10 minutes.
When everything is cooked through, remove from oven then allow to cool.
Assemble the canapes by layering the turkey on top of the potato, putting the chipolata on top of that, finishing it off with a stuffing ball, and holding everything in place with a skewer. Garnish with cranberry sauce and a little sprig of rosemary or thyme.