Use a large grater to shred 3/4 cup of cold butter and chill until ready to use
In a large bowl, combine 2 1/2 cups of all purpose flour, 1/3 cup of brown sugar, 1 tablespoon of baking powder, 1/2 teaspoon of baking soda, 3/4 teaspoon of salt, 1 teaspoon of ground cinnamon, 1/4 teaspoon of nutmeg and 1/4 teaspoon of cloves
Add the cold shredded butter and quickly mix until evenly distributed
Add 1 1/4 cup of pumpkin purée and 2/3 cup of buttermilk and mix until a shaggy dough develops
Transfer the dough onto a floured surface and gently knead just enough to bring the dough together (about 10 times) and gently press it out to about an inch thick
Use a floured cutter to cut out the biscuits and place them onto a greased skillet or baking sheet
Transfer the cut out biscuits into the refrigerator or freezer while you preheat your oven to 425°
Once the oven has preheated, bake the biscuits for 18-20 minutes or until fluffy and golden brown
Brush with melted butter
Serve warm with butter, honey or whipped maple butter