trimmed green beans • oil (any oil works here) • salt • pepper • canola oil (or any vegetable oil) • olive oil (can substitute with any other vegetable oil) • dijon mustard • balsamic vinegar (the cheap stuff is best for this in my opinion) • white/apple cider/rice vinegar (can substitute w/ more balsamic) • soy sauce (can substitute w/ worcestershire sauce or an additional 1 tsp salt) • sugar • of a small shallot, diced or grated (optional) •