Prepare your pie crust by thawing a store-bought gluten-free crust or making your own with gluten-free flour, butter, and salt.
Make the cherry filling by combining cherries, sugar, cornstarch, and lemon juice in a bowl.
Add almond extract to the cherry mixture and stir gently to combine.
Assemble the pie by pouring the cherry mixture into the prepared crust and dotting with butter.
Bake the pie at 425°F for 15 minutes, then reduce to 350°F and bake for an additional 30-35 minutes.
Let the pie cool for at least 2 hours before serving.