Chop the half of a medium onion
Peel the garlic cloves
Smash the garlic cloves with the side of the knife
In the zip bag, put the chopped onion, smashed garlic cloves, 0.25 cup of soy, 0.25 cup of Dijon, 3 tbsp of red wine vinegar, 2 tbsp of molasses, and 0.5 cup of olive oil
Massage the bag to work the ingredients together and make them mix well
Add the 2 lbs of skirt steak
Zip up the bag tightly, roll it up, and put it in the fridge
Let it rest for at least 3 hours, but could be overnight as well