In a very large, microwave-safe mixing bowl, heat the butter in the microwave until it melts. If your bowl is not microwave safe, melt the butter in a small microwave-safe bowl or in a saucepan on the stove, then pour it into the larger bowl.
To the mixing bowl, add the apple slices, honey, cornstarch, cinnamon, allspice, salt, and bourbon. Stir to coat.
Pour the mixture into a deep 9x9 or similarly sized baking dish. Pour any liquid that has collected in the bottom of the bowl over the top.
Bake the apples for 25 minutes, until fork tender but not completely mushy.
Serve hot, with vanilla ice cream or whipped cream as desired.
Notes
TO STORE: Refrigerate leftover baked apples in an airtight storage container for up to 4 days.
TO REHEAT: Gently rewarm baked apples in a baking dish in the oven at 350 degrees F until hot.
TO FREEZE: Leftover apples can be frozen in an airtight freezer-safe storage container for up to 3 months. Let thaw overnight in the refrigerator before reheating.