Place the peaches in a bowl and toss with the sugar and salt. Spray an appropriately slow cooker with cooking spray.
Combine the other ingredients leaving out the butter. Completely cover the peaches with the cobbler topping. Pour on the butter. Cover the top of the slow cooker with a paper towel and pull tautly, place the lid on. This will capture some of the moisture, but keep an eye on it. This is optional. Cook on low 7-8 hours or on high for 4-6 hours.
When serving, cut out a round piece of the topping and scoop down to get all the peaches. Serve with the crust on the bottom in a dish and top with ice cream or whipped cream.