I stumbled across this recipe on YouTube that made me think, hey I can resistant starch this:
TWICE BAKED BUBBLE AND SQUEEK JACKET POTATOES
Roast large potatoes. Half them and scoop out the flesh. Mash it with butter and allow the potatoes to cool (how long do you need to get maximum RS? Overnight?)
Shred cabbage and sauté in butter and a little water until tender.
Mix the cabbage with the mashed potatoes and spoon into the skins. Roast in the oven until hot and the tops are crispy and golden.
^original from Gordon Ramsey
What do you guys think? Would it work?