Cream of the Crop Acorn and Blue Ballet. The Cream of the Crop Acorn is another recently developed varietal of the venerable acorn. In 1990, it was named an ‘All-America Selection’ – an award bestowed upon new varieties of plants judged to have superior garden performance. It has a sweet, creamy, golden flesh. The Blue Ballet was bred from the much larger Blue Hubbard variety. The blue skin hides deep golden flesh with a mild, sweet flavor.