What do you breed a sorrel to to get a buckskin?

Find a Perlino Stallion who is genetically AAEECrCr and the breeding will produce 100% buckskin foals no matter the genetics of the mare.

If the stallion is AaEeCrCr or AAEeCrCr the foal could be a palomino.

The chestnut mare could be aaee, Aaee or AAee combinations with a stallion who has Aa genetics where the mare is aa or Aa at the Agouti site could produce a smokey black.