Preheat oven to 180ºC. (350ºF)
Heat the rapeseed oil in a pan over medium heat then add the cabbage and cook until it starts to soften but still has a little bite to it.
Place the cooked cabbage on a chopping board and chop until it is really fine then empty into a bowl OR pre-chop in a food processor before cooking.
Add half of the potato, garlic powder, flour, and thyme leaves then stir well.
In a separate bowl, whisk the egg, then empty into the potato mixture. Stir well then add the remaining potato until it becomes a thick mixture.
Using a heart cookie cutter, divide the mixture into heart shapes, letting each one drop into the breadcrumb mixture. Cover with breadcrumbs then place onto a baking tray.
Drizzle over a little extra oil then bake in the oven for 20 minutes until crispy and golden, flipping halfway.
Serve 3 nuggets together to make a shamrock shape and add a sprig of chive for a super festive look.