Blend the butter, salt, and flour between the fingers, with a pastry blender, or in a stand mixer or food processor until the mixture resembles fine crumbs. Grating the butter on a cheese grater can help.
Add just enough milk to make the dough come together.
Roll out the dough and place in a pie plate. Use a fork to pierce the dough.
Bake at 400F for 15 minutes
Prepare the fruit filling
Mix the fruit, sugars, and seasonings in a large microwavable bowl
Microwave on high for 2-3 minutes to soften the apples.
Allow to stand aside for at least 20 minutes.
Prepare the crisp topping
Using hands, a pastry blender, or a stand mixer blend the crisp topping ingredients until the mixture resembles coarse crumbs.
Assemble the pie
Add the fruit mixture and then top with the crisp topping