1. Preheat oven to 350 degrees. Line standard muffin tins with paper liners. Sift together flour, baking soda, baking powder, salt, and spices.
2. With an electric mixer on medium -high speed, cream butter and brown sugar until pale and fluffy. Add eggs, one at a time, beating until each is incorporated, scraping down sides of bowl as needed. Reduce speed to low. Add flour mixture in three batches, alternating with two additions of buttermilk, and beating until just combined. Add pumpkin puree, beat until just combined.
3. Divide batter evenly among lined cups, filling each three-quarters full. Bake, rotating tins halfway through, until golden brown, 18-20 minutes. Transfer tins to wire racks to cool 1 to 3 minutes; turn out cupcakes onto racks and let cool completely. Cupcakes can be refrigerated up to 3 days in airtight container.
Frost with Cream cheese frosting;
1 cup (2 sticks) unsalted butter, room temperature
2-8 ounce packages of cream cheese, room temperature
1 pound powdered sugar, sifted
3/4 teaspoon pure vanilla extract
With an electric mixer on medium-high speed, beat butter and cream cheese until fluffy, 2 to 3 minutes. Reduce speed to low. Add sugar 1/2 cup at a time, and then vanilla, and mix until smooth and combined, scraping down sides of bowl as needed.
Go to full version of