Once tallow has melted, sear lamb on all sides, about 8-10 minutes total.
Once lamb has finished searing, reduce heat to medium and transfer lamb shanks to Crock Pot
Add onion and garlic to saucepan and sautee until tender, about 10 minutes
Add in red wine to deglaze the pan and reduce by half.
Add diced tomatoes, tomato paste and beef stock, cover and simmer for 5-10 minutes.
Transfer mixture to blender and blend until smooth.
Pour mixture over lamb shanks in the Crock Pot and cook on low for 8 hours. If liquid doesn't completely cover lamb, turn once half way through cooking process.
Serve with pickled red onions and crumbled goat cheese and enjoy.
Recipe by Pastured Kitchen at https://www.pasturedkitchen.com/recipes/braised-lamb-shanks-with-goat-cheese-and-pickled-red-onions/