In a large, heavy saucepan, combine mango, sugar, butter, flour, cornstarch, vanilla & salt. Cook over medium heat, stirring regularly until bubbly & thickened. Place in a baking dish, set aside.
Cobbler
In a bowl, whisk together flour, oatmeal, sugar baking powder, spices & salt. With finger tips, blend in butter until crumbly. Add milk, stirring only to combine.
Drop large tablespoons of dough on top of warm fruit. Place into preheated oven & bake for 35-40 minutes, until the edges are bubbling & the top is golden brown.