For the Marinade: In a bowl, add cubed steak bites, salt, parsley, black pepper, onion powder, garlic powder, Worcestershire sauce and olive oil.
Mix to cover steak and cover with plastic wrap. Marinate for up to one hour.
For the Caramelized Onions: Slice 4 sweet onions and set aside.
Add butter and olive oil to a heavy bottom skillet and add sliced onions.
Allow the onions to cook on high for about 3-4 minutes before reducing the heat to medium.
Stir the onions about every 5 minutes until completely caramelized. This can take a while (30-40 minutes), but it’s so very worth the wait.
For the Steak Bites: Into a very hot cast iron pan, add a teaspoon of salt. No oil or liquid.
Add marinated steak bites to pan and cook for 3 minutes on each side or until crust forms. Do not move them around the pan. Simply let them sear. Once both sides have been seared, toss them around the pan for a minute to cook all sides. (The time depends on the size of your bites.)
Once done, remove from heat and add the next batch. Do not crowd your pan or the meat will steam, not brown. You want that nice sear on both sides. We like our steak rare, so adjust your time for desired doneness.
To Assemble: Take the Wellington Traditional Water Crackers, place all steak bites on top.