Preheat the Oven: Begin by preheating your oven to 350°F (175°C).
Prepare the Pie Crust: Roll out your pie crust and cut into circles to fit a muffin tin. Carefully press the circles into the bottom and sides of each muffin cup.
Mix the filling: In a large mixing bowl, combine the pumpkin puree, brown sugar, eggs, pumpkin pie spice, and heavy cream. Whisk until smooth and fully incorporated.
Fill the Crusts: Pour the pumpkin mixture into each mini crust, filling them about ¾ full to allow for slight expansion while baking.
Bake: Place the muffin tin in the preheated oven and bake for 20-25 minutes. Keep an eye on them—the edges should be set but the centers may still jiggle slightly.
Cool: Allow the mini pies to cool in the muffin tin for 10 minutes before transferring them to a wire rack to cool completely.
Serve: Once cooled, serve your mini pumpkin pies as-is, or top with whipped cream or a sprinkle of cinnamon for added flair.