First off, heat the butter in a saucepan and sauté the garlic and onion until translucent. Fry for another minute on high heat.
Deglaze the pan by adding the wine.
Set the stove to medium heat and add the bouquet garni.
Cook for 4 minutes, add one tin of chopped tomatoes. Season with salt and black pepper. Set aside.
In an ovenproof dish, pour out the other tin of chopped tomatoes and arrange the shanks on top.
Add the rest of the sauce from the saucepan.
Arrange the garlic and bouquet garni in the dish and bake for 3 hours covered, at 160 degrees Celsius, removing it every hour, basting the shanks with the tomato sauce.
After 3 hours, remove the lid; add the pearl onions and second cup of red wine and roast for another 40 – 50 minutes until sauce becomes dark and sticky. Season. Remove from oven.
Remove shanks, whole garlic and pearl onions from the dish – transfer the leftover sauce to a food processor (chuck the bouquet garni) and blend until smooth, or desired thickness are met. Set aside to serve.
To make the cauliflower mash, simply blend the steamed cauliflower with butter and milk until smooth. Add the parmesan and season.
To serve, add spoonsful of cauliflower mash to a plate, with a shank and topped with tomato sauce and whole garlic on the side