When cooking neck bones in a crock pot (slow cooker), the amount of water you use will depend on the size of your slow cooker and the quantity of neck bones you're cooking. However, as a general guideline, you can follow this approach:
Start by placing the neck bones in the crock pot.
Add enough water to cover the neck bones completely. You want the bones to be submerged in the liquid so that they cook evenly and become tender.
You can also add some additional flavorings to the water, such as onions, garlic, bay leaves, or your favorite herbs and spices, to enhance the overall taste of the dish.
Avoid adding too much water, as slow cookers are designed to retain moisture, and excess water may dilute the flavors.
Keep in mind that slow cookers come in various sizes, ranging from small 2-quart models to larger 6 or 7-quart models. Adjust the amount of water accordingly to suit the size of your slow cooker and the quantity of neck bones you're cooking.
Additionally, if you're planning to add other ingredients like vegetables or grains (e.g., potatoes, carrots, rice) to the slow cooker, you may need to adjust the amount of water accordingly to account for the additional moisture these ingredients will release during cooking. You can always start with a conservative amount of water and add more if needed during the cooking process.