Season the chicken thighs with garlic powder, paprika, and black pepper.
In a large skillet over medium-high heat, melt the butter. Place the thighs skin side down in the pan and cook for 3-4 minutes, until the skin is golden brown.
Transfer the browned chicken thighs to the slow cooker.
In a small bowl, mix the pineapple juice, brown sugar, ketchup, soy sauce, ground ginger, and garlic.
Pour the sauce over the chicken thighs, cover, and cook on low for 6 hours or on high for 4 hours.
Once cooked, transfer the chicken thighs to a baking sheet. Add pineapple slices and broil until the skin starts to caramelize.
Serve and enjoy!
Notes
For crispier skin, pat the chicken thighs dry with paper towels before seasoning. This helps achieve a better sear in the skillet.
Keep a close eye on the chicken while broiling. The skin can go from caramelized to burnt quickly.
This dish reheats well. Store leftovers in an airtight container in the refrigerator and reheat in the oven or microwave.