the onion and garlic over a low heat.
add the tomato pulp to the onions.
stir though the balsamic vinegar and mixed herbs.
place the sauce on the lowest heat and leave to simmer very gently.
if it starts to dry out, add a splash of the tomato juice.
the oats should have rested by now so add the meat and use your hands or the stand mixer (with the paddle) to combine the meat and oats.
scoop about a tablespoon of the mixture out and shape into a ball. continue until you have no meat left. (you can make these bigger but they will take longer to cook).
i use an actual tablespoon measure to portion 