To start, remove the beef ribs from the package and pat them dry if needed. Then, try to evenly slice the ribs between the bone. The standard crockpot should be able to fit a full rack of sliced beef riblets with no problem. You may have to arrange them around to make them fit.
In the bottom of the crockpot add beef broth, soy sauce and liquid smoke. Swirl them around with a spoon to make sure it's mixed.
Next in a bowl combine the seasoning mix together. Season the ribs generously with the seasoning.
Place the riblets into the crockpot. Having the riblets cut side down will guarantee each riblet is touching the broth. Cover the crockpot and cook on high for 3 hours or low for 6 hours.
After that time, remove the ribs from the crockpot. Sauce them and allow them to cool a bit while you preheat the oven to 400℉.
After waiting at least 15 minutes, place the sauced ribs in the oven for 15 minutes. The sauce will come out sticky and the riblets are ready to serve.