Low-FODMAP Slow Cooker Chicken Drumettes

lbs chicken drumettes, drumsticks or thighs. (Best if they're skinless)

tomato sauce (make sure ingredients are low-FODMAP)

garlic-infused olive oil (can use regular as well)

soy sauce (use Tamari if necessary)

grainy dijon mustard (make sure ingredients are low-FODMAP)

BBQ spice rub, salt and pepper.