Do you mean baby block cakes? I generally make 4" square tiers, 2 layers high, so they come out to be 4" cubes. You can do this with any size square cake, just make sure that your height is the same as your length and width so it is a "block" size.
HTH,
Odessa
I just made four for a shower last week. I used a 10"x10"x3" pan. Cut into quarters, I made two blocks from each pan. Frosted (using the Viva method) with mmf bows attached. I boarded and supported some of them, as needed, for stacking. Not sure what else you need but ask away!
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