[header] How to cook london broil in the oven [title] Combine the marinade ingredients. [step] The garlic, salt, red wine, balsamic vinegar, soy sauce, and honey need to be combined into a thick liquid. [substeps] Use a blender or food processor to mince the garlic cloves and salt into a paste. 
Add the red wine, balsamic vinegar, soy sauce, and honey to the blender. Continue pulsing until the ingredients are evenly combined into a thick liquid.