Preheat the oven to 180C/350F. Grease a 9 x 13-inch dish and set aside.
In a mixing bowl, combine all your filling ingredients and mix until combined. The peaches should be evenly coated and glossy. Transfer to the greased dish and spread out in an even layer. Place it in the oven and par-bake it for 15 minutes.
While the peach filling is baking, prepare the biscuit topping. In a mixing bowl, whisk together the almond flour, arrowroot powder, baking soda, and salt. Add the coconut oil, maple syrup, and milk, and whisk together until a thick dough remains.
Remove the baking dish from the oven. Drop spoonfuls of the biscuit topping onto the peaches. Place back in the oven and bake for a further 15-20 minutes, or until golden brown on top and the peaches are bubbling.
Remove the peach cobbler from the oven and let it sit for 10-15 minutes before serving.
