Pat dry the Beef and season with salt and pepper both sides. The Dredge with the flour so all coated. Heat the oil in a large non stick pan or you can saute if you slow cooker has that feature. Brown each pc of beef separtley about 4-5 minutes per side. Transfer to a large plate while doing the next.

Add the onions to the pan and cook until soft about 4 mins, if sticking you can add a little of the wine to de galze the bottom. add the garlic and cook for 2 mins. Transfer to slow cooker. Then add the tomatos and puree and all the rest of ingrediants. Return the beef to the pot and set to high for 5 hours or until fall off the bone.