Otis Street Steak Sauce

¼ cup unsalted butter
1 medium onion, sliced thin
6 cloves garlic, sliced thin
1 pint beef broth
1 cup dark corn syrup
1 cup red wine
¼ cup red wine vinegar
¼ cup molasses
2 cups tomato paste
1 Tbsp kosher salt
1 tsp dry mustard
1 tsp smoked paprika
1 tsp black pepper
¼ tsp ground cloves

- Over low to medium heat, sauté the onions and garlic in the butter until soft – about 10 minutes
- Whisk together remaining ingredients in a large bowl. Add to onion mixture.
- Cook over low heat until it has a ketchup-like consistency, stirring often to prevent burning. Allow to cool.
- Puree in a blender and pass through a mesh strainer (chinois.)