Ranma 1/2 OVA 3: Akane Vs. Ranma: The One Who Inherits Mom's Recipes Will Be Me!

Kasumi gets sick, and Akane discovers her late mother's recipes and tries to cook for the family. Ranma's mother, Nodoka, arrives to help and teaches both Akane and a disguised Ranma (Ranko) how to cook. A cooking competition between Akane and Ranma ensues.