Mix Flour, sugar, baking soda and salt in a bowl.
Add in the butter and milk, mix by hand preferably or use a paddle attachment on mixer. Do not over mix or it will become too tough. Set aside to rest.
make the filling. Put all ingredients except cornstarch in a pot over medium high heat. Bring to a simmer. Whisk in the cornstarch mixed with a bit of water and cook lightly until lightly thickened. Remove from heat.
Preheat oven to 350 degrees.
Spray the baking dish with pan spray. Pour in the Cherry Filling.
Lightly flour a bench or cutting board. Roll out the Biscuit dough to about 1/2 inch thick. Place the dough on top of the cherry filling. You can either do it as a sheet or cobble together a bunch of individual biscuits so the filling shows through. Sprinkle with a large grain sugar to help create a crisper topping.
Bake for approximately 45 to 55 minutes. The top should be a golden brown color and the crust should be baked through.
Cool on a baking rack. May be served hot or cold (we prefer hot/warm). Serve with whipped cream, ice cream, or whatever you like.
