I really hope she doesn't read this 
I booked for a birthday cake to be made for my PFB's first birthday later in the year. Her cakes look amazing, and she told me she was away the week I needed it but her cakes last up to 10 days. I was a bit
at this - as I want a chocolate one not a fruit cake.
I happened to see another cake I wanted for my husband's birthday that was last week - I asked her for a price and picked it up last week. It looked awesome, but tasted really really bad. My husband didn't mind it but it was not my cup of tea at all 
How can I tell her I don't want a cake from her any more? I feel slightly obligated as I booked a slot and I think she charged me less for my DH's cake because she had a "big" one coming? I would like to tell her the truth - she is a professional and deserves to know why she is losing business.
But I don't know how to say it without pissing her off! We live in the same community, and it just feels like a personal insult.