This creamy, rich, brown-sugar-crumble-laced Pumpkin Ice Cream is packed with fall flavors. It's the perfect topper for a sugar cone, apple pie, chocolate cake, gingerbread, pumpkin bread, gingersnaps, graham crackers, biscoff cookies, oatmeal cookies, or anything else you can think of to put ice cream on.
In a large bowl using a hand mixer or the bowl of a stand mixer using the whisk attachment beat the heavy cream on medium speed for several minutes until you can form peaks that hold their shape.
In a separate medium-size mixing bowl, stir together the sweetened condensed milk, pumpkin puree, vanilla, and cinnamon.
Using a rubber spatula, gently fold the pumpkin mixture into the whipped cream until they are fully incorporated.
In a small mixing bowl, stir together the brown sugar, melted butter, and pumpkin pie spice.
Line a loaf pan with plastic wrap. This will make it easy to remove the ice cream when you are ready to serve.
Pour half of the ice cream mixture into the loaf pan. Sprinkle half of the brown sugar crumble mixture over the top. Pour the remaining ice cream mixture on top of the brown sugar crumble. Finish by sprinkling the remaining brown sugar crumble on top.
Cover the loaf pan with plastic wrap or aluminum foil. Freeze for at least 6 hours, but preferably overnight.