Pour frozen thighs in the pot with 4 simple ingredients. My aunt made this every Saturday and nobody ever left hungry.

Directions
Place the frozen bone-in, skin-on chicken thighs in an even layer in the bottom of a 5- to 7-quart slow cooker. It’s okay if they’re stuck together a bit; just spread them out as best you can.
In a medium bowl, whisk together the ketchup, brown sugar, soy sauce, and garlic powder until smooth and well combined. This is your simple sweet-and-savory glaze.