Line your mini muffin pan with 16 liners and clear enough space in your freezer to fit the pan.
In a medium, microwave-safe bowl, melt butter. Stir in graham cracker crumbs and brown sugar until mixture begins to clump. Drop a heaping teaspoon of the crust into each of the prepared muffin cups. If there are leftover crumbs, distribute them between the cups (or eat them ;) ). Use the top of a wooden spoon or bottom of a shot glass to firmly pack the crumbs into the cups.
Pour heavy cream into a small bowl and use a handheld electric mixer, starting on low, working up to high to beat cream until stiff peaks form.
In a medium bowl, combine softened cream cheese, sugar, and vanilla. Beat until well-mixed and fluffy.
Fold whipped cream into cream cheese mixture until no streaks remain, being careful not to deflate the whipped cream as best you can. Transfer mixture to a piping bag or disposable plastic bag and snip off a corner of the bag. Use the bag to pipe the cheesecake mixture into the muffin cups, filling them about 3/4 of the way full and smoothing the top of each cheesecake as you go.
Place cheesecakes in the freezer and freeze for 10 to 15 minutes, until just set.
In a small, microwave-safe bowl, combine chocolate and coconut oil. Microwave for 30 seconds and stir until smooth. If necessary, microwave in 15-second increments until melted. Use a teaspoon to drop spoonfuls of chocolate over the cheesecakes until all the tops are covered and chocolate is gone.
Freeze for 3 to 4 hours until completely solid. Remove cheesecakes from tray (leave wrappers on) and store in an airtight container or freezer bag in the freezer for up to a month.
Enjoy!