Ultimate Beef Tenderloin Steak Sandwich - from the weber kettle grill

Tenderloin steak sandwich - This must be one of the best steak sandwich recipes around. I hope you like this videos recipe and give it a try. For my dutch viewers: Haal je ossenhaas bij Need a weber kettle? - Need a thermometer - Recipe: Ingredienst: - Beef tenderloin - Ciabatta - 2 table spoons mayonaise - 2 tablespoons mustard - mix lettuce - Kress - 125 ml red wine vinegar - 70 gr dark brown sugar - 2 medium size onions