Best Buttermilk Pumpkin Pound Cake

Ingredients:

1 cup unsalted butter, softened
1 cup granulated sugar
1 cup packed brown sugar
4 large eggs
1 cup canned pumpkin puree
1 cup buttermilk
2 ½ cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1 teaspoon ground cinnamon
½ teaspoon ground nutmeg
¼ teaspoon ground ginger
¼ teaspoon salt
1 teaspoon vanilla extract

Optional Glaze:

1 cup powdered sugar
2 tablespoons milk
½ teaspoon vanilla extract