Badfreaky – The meanest witch (The life of Badfreaky the witch Book 1) by Konstantinos V. E. Adamopoulos
A four-year-old girl, Marily, lives happily with her parents, a good witch called Goodypie, and her husband Mr. Goodweather. One day while Goodypie was boiling some plants and flowers in her big cooking pot, Marily falls into the pot and turns into the notorious Badfreaky, the meanest witch!