Complex sentence: The mistress would not allow slaves to eat bran, meat, or any other foods that were considered luxurious, and she would often watch the slaves be beaten as it was among one of her favorite pastimes.
Split into simpler sentences: The mistress would not allow slaves to eat bran, meat, or any other foods that were considered luxurious. She would often watch the slaves be beaten as it was among one of her favorite pastimes.