Just tried this. Ok so its not a proper doughnut but it does hit the spot. Get your 60g healthy b bread roll. Cut a slice in it. Put jam in the slot. I did 2 teaspons but obviously its up to you how much. Put on baking tray, spray with frylight and sprinkle with sweetner.
Bake for 10 mins.
Syns depends on what and how much jam you use. Might work with custard too xxx