This is best stored for at least 1 month before serving, but we have enjoyed it fresh as well. Please read About Fruitcakes.
Have all ingredients at room temperature, about 70°F. Preheat the oven to 300°F. Grease two 9 × 5-inch loaf pans or one 10-inch tube pan and line with parchment paper so it extends over the long sides of the pans (for a tube pan, line the bottom with a parchment round with a hole in the center, and line the sides of the pan with a long strip of parchment).
Sift together into a large bowl:
Beat in another large bowl, or in a stand mixer with the paddle attachment, until creamy:
Gradually add and beat on high speed until lightened in color and texture, 3 to 5 minutes:
Beat in one at a time, scraping the sides of the bowl as necessary:
Beat in:
On low speed, add the flour mixture in 3 parts, alternating with:
in 2 parts. Beat just until blended and scrape the sides of the bowl as necessary. Fold in:
Scrape the batter into the pan(s) and spread evenly. Bake until a toothpick inserted into the center comes out clean, about 1 ½ hours for loaf cakes, 2 ½ to 3 hours for a tube cake. (If the cake is getting too dark on top, tent it loosely with foil for the last 30 to 60 minutes.)
Let cool in the pan on a rack for about 1 hour. Invert the cake and peel off the parchment paper. Let cool right side up on the rack. To store, see About Fruitcakes.