Preheat oven to 350°F. Line 14 cups of standard size muffin pan with cupcake liners. Spritz bottoms lightly with cooking spray.
To Make the Crust: In a small bowl blend together graham cracker crumbs, melted butter and brown sugar. Sprinkle a heaping 1 1/2 tablespoons into each cupcake liner. Use a 1/4 cup measuring cup, a shot glass or a pastry tamper to firmly press the crumbs onto the bottom. Chill for 10-15 minutes while you make the filling.
To Make the Pumpkin Cheesecake Filling: Meanwhile, in a medium size bowl use as electric mixer to beat together cream cheese and pumpkin on medium-high speed until smooth, around 2-3 minutes.
To the bowl add sugar, cornstarch, pumpkin pie spice, salt and vanilla beating until fully combined. Add the eggs one at a time beating well after each addition, scraping the side of the bowl to combine.
Use an ice cream scoop to evenly divide the mixture between the muffin cups filling about 3/4 full. (You can also use a measuring cup.)
Bake in the preheated oven for 20-25 minutes or until the tops are dry to the touch and the centers are set when the pan is gently shaken.
Let cool in the pan for 20 minutes then remove to a cooling rack to cool completely.
Transfer to the fridge and chill for at least 2 hours or overnight.
Remove liners and serve topped with whipped cream and a sprinkle of pumpkin pie spice or ground cinnamon.