To begin, preheat your oven to 325 degrees. Grease and flour a 9x5 loaf pan. Set it aside.
In a bowl, combine the flour, cinnamon, nutmeg, allspice, baking powder, and salt. Crush the instant coffee granules a bit with a mortar & pestle. Add the instant coffee to the dry ingredients and stir them all together. Set that bowl aside for now.
In your mixing bowl, beat together the sugar and butter. Beat these until they are very fluffy.
With the mixer going, you will add your 4 eggs (room temperature) one at a time, incorporating each fully before adding the next. Once the eggs are beaten in, add in the coffee liqueur.
Scrape the bowl with a rubber spatula, being sure everything is mixed in well.
Add half of your dry ingredients into the butter mixture. When it is just mixed in, add in the milk.
When the milk is mixed in, add in the remaining half of the dry ingredients. Mix until it is just combined and smooth – again being sure to scrape the bowl with a rubber spatula. Pour the batter into your prepared loaf pan, smoothing the top.
Bake the cake for 70-80 minutes or until it tests done in the center with a tooth pick.
Allow it to cool in the pan on a cooling rack for a few minutes. Then run a thin knife around the edges and turn it out to cool completely.
Dust with some powdered sugar, if you like, or just eat it plain.
Enjoy!
Notes
For an optional glaze: Combine 2 1/2 c powdered sugar, 3 to 4 tablespoons hot, strong coffee and 1/2 tsp vanilla in a bowl. Whisk together until smooth. Drizzle over the top of the cake. Enjoy!