Add carrots, onion, and potatoes to the bottom of a 6-quart slow cooker. Then place chicken thighs on top.
In a bowl, add chicken broth, soy sauce, peanut butter, garlic, ginger, turmeric, coriander, cumin, black pepper, salt, and red curry paste. Whisk until combined and pour over chicken and vegetables.
Cover and cook on high for 2½-3½ hours or low for 4-5 hours.
Remove chicken and let cool enough to chop into bite-sized pieces or shred with two forks.
In a bowl, add coconut milk and cornstarch. Whisk until smooth and there are no lumps. Then, add chicken, coconut slurry, and red bell peppers into the crock pot. Mix until well combined. Continue to cook for 15 minutes or until the sauce thickens.
Serve over rice and garnish with chopped peanuts.
Notes
Be sure to use a can of well-shaken, full-fat, room-temperature coconut milk to prevent separation and curdling.
Substitute red curry paste for tomato paste and curry seasoning if you have trouble finding it at your local grocery store.
Store leftovers in an airtight container in the refrigerator for up to 3 days. You can freeze for up to two months but the coconut milk may become grainy when thawed.