Arrange the chicken drumsticks in a single layer at the bottom of your slow cooker.

In a mixing bowl, whisk together chicken broth, olive oil, balsamic vinegar, jalapeño, garlic, thyme, and salt.

Pour the marinade mixture over the chicken drumsticks, ensuring they are thoroughly coated.

Cover the slow cooker and set it to cook on high for 4 hours or low for 6 hours.

Preheat your broiler to high. Remove chicken from the slow cooker and transfer to a baking sheet.

Place the drumsticks under the broiler for 2-4 minutes until the skin is crispy.

Drizzle the juices from the slow cooker over the drumsticks before serving.