Toast (2010)

Young Nigel Slater has big culinary aspirations, even though all his mother knows how to make is toast. When his mother dies, relations grow strained between Nigel and his father, especially when he remarries a woman who wins his heart with a lemon meringue pie. Nigel enters culinary school, starts working in a pub, and finds himself competing with his stepmother - both in the kitchen and for his father's attention.

Unfortunately the movie Toast is not yet available on HBO Max.