Chocolate from the Cake Mix Doctor The Cake Mix Doctor goes chocolate! Anne Byrn brings her proven prescription for doctoring cake mix to an ingredient that inspires love bordering on obsession. It's a marriage made in baker's heaven-150 all-new, all-easy recipes for cakes Excellent gently used condition. Bundle and save! New to Poshmark? Use code ROSIELADYBUG to set up a new account and receive a $10 credit toward your purchase!