Episode 10 is titled Food for Thought (The original title is Una Questione di Gola, which loosely translates to "A Question of the Throat"). It is the tenth episode of the first season.
Molly loves sweets, she can't do without them and feels very unhappy. Kate and Magic decide to give her a pet, a hamster chef who will make her appreciate fruits and vegetables. Obviously, the wicked Eva tries once again to steal the Friendship Heart, but the brave hamster will save the situation. Ava is helped again by her new friend, Wallace.
View the episode's transcript here.