i may be misinformed, but i think that a cobbler has a biscuit topping. this type of topping would be termed a crisp.
for any one wanting to substitute the cookie mix, a typical crisp topping would go something along the lines of 1 part shortening, 1 part sugar, & 2 parts flour(this is off the top of my head, but ratios can vary a lot). just go ahead and mash it all together with your hands. it should end up crumbly.
for the above recipe, working about equal parts butter, brown sugar and flour plus some cinnamon into a paste and then adding some quick cooking oats until it gets to being crumbly would be good for the topping. for the filling, a good handful of flour would do just fine. personally, i wouldn't cut the apples so small, and i'd add a squeeze of lemon and a good pinch of salt. cooking time could vary a lot depending on what size pan you're using and how deep the apples.
let me make sure that wine's ok before i use it.