Though spice cake usually conjures up images of New England farm kitchens, it reminds me more of the cinnamon- and clove-scented pastries prepared by my Italian grandmothers.
Set a rack at the middle level of the oven and preheat to 350 degrees.
For the cake, in a large mixing bowl, beat the butter and sugars for about 5 minutes, until light and fluffy. In another bowl, stir the baking powder, spices, and salt into the flou