Step 1

In a slow cooker, add the chicken, onion, garlic, ginger, chicken stock, soy sauce, brown sugar, oyster sauce, and sesame oil.

Step 2

Cook on low for 4-6 hours.

Step 3

Mix the cornstarch with the water. Stir the cornstarch mixture into the slow cooker.

Step 4

Add the broccoli.

Step 5

Cook on high for roughly 30 minutes or until thickened and the broccoli is hot.