This Buttered Rum Ice Cream Pie is the perfect holiday treat to serve to friends and family! Think of it as a big ice cream sundae in the shape of a festive pie!
Preheat oven to 375 degrees.
In a medium bowl, mix together the crushed graham cracker, cinnamon, 1/2 tsp salt, and 6 Tbsp melted butter until everything is mixed and the graham cracker is wet from the butter. Press firmly into a 9 inch pie pan.
Bake for 7 minutes and set aside to let cool.
Set the ice cream out to soften for at least 10 minutes. When the crust has cooled, scoop the ice cream into the pie pan and carefully (to avoid the crust breaking) press the ice cream down to create a single layer. Transfer to the freezer and let chill for at least an hour or up to overnight.
In a medium saucepan, add 4 Tbsp unsalted butter and let melt over medium heat. Add the brown sugar and salt and stir to wet the sugar. Let simmer for 3 to 5 minutes or until the mixture has darkened and looks like molten lava. Add the heavy cream and let simmer, stirring often, until the mixture reaches 225 degrees. Remove from heat, stir in 1 tsp dark rum, and transfer to a glass bowl to cool.
In a stand mixer fitted with the whisk attachment, whisk the heavy cream over medium. Once it starts to thicken up, add 2 Tbsp powdered sugar and 1 Tbsp rum and whip until stiff peaks form.
Remove the pie from the freezer, pour the cooled butterscotch over the ice cream, and top with whipped cream. Sprinkle cinnamon over the whipped cream, if desired. Serve right away.