Around the time of the trial, Miss Maudie invites Scout and Jem for cakes as she has always done. Scout takes this invitation as a statement of solidarity.
In offering the cakes as usual, Miss Maudie is saying that the trial does not change her relations or opinions regarding the Finch's at all.
Maudie believes that the long deliberation by the jury is a "baby-step" toward fairness and better race relations in Maycomb. She supports Atticus in his decision to defend Tom, recognizing that "Atticus won't win" but that "he's the only man in these parts" with a chance to provide Tom with the justice he deserves.
Miss Maudie was similar to Attcus in terms of her beliefs and attitudes. She does not hold with the general beliefs of the average Maycomb citizens, and that includes the racism that is inherent in their culture.