Pat the leg quarters dry with paper towels.
In a small bowl, combine the salt, pepper, smoked paprika, garlic powder, onion powder, thyme, and oregano.
Rub the seasoning mixture all over the chicken leg quarters.
Place the chicken in the Crockpot. Add the chicken broth and Worcestershire sauce to the pot, pouring around (not over) the chicken.
Cover and cook on low for 6 hours, or until the chicken is tender and cooked through.
Preheat the oven broiler to high.
Carefully transfer the leg quarters to a baking sheet lined with foil. Broil for 3-5 minutes, until the skin is crispy and golden brown.
While the chicken is broiling, mix the cornstarch and water together to form a slurry.
Add the slurry to the Crockpot, whisking to combine. Cover and cook on high for 5-10 minutes, until the sauce has thickened into a rich gravy.
Serve the crispy leg quarters with the savory gravy poured on top or on the side.