Start off by slathering the chuck roast with duck fat, this is a binder and then season generously with your favorite bbq rub. Let the meat sit out for 30 minutes while seasoned.
Fire up the smoker and set the temp at 250 degrees F. Add hickory wood chunks for your smoke.
Add the chuck roast and let it smoke for 3 hours. Enough time to build a deep mahogany bark.beef in a pan
In an aluminum pan add these ingredients: Sliced onions, smashed garlic cloves, roasted garlic bouillon, 1 can of tomatoes with green chilies, chili seasoning mix, French onion seasoning mix, water and beef broth. Add the chuck roast to the pan and cover with foil. Place it back on the smoker and let it braise in the juicy goodness for 2-3 hours.
Remove the chuck roast from the pan and place it in foil inside a cooler. Let rest for 30 minutes. Strain the juices from the solids into a pot.
Shred the beef and add 1 cup of the braising liquid with it and mix.
Build the sliders: Shredded queso cheese, shredded beef, more cheese and then the crispy fried onion chips.