How does cooking food led to larger brains among our ancestors?

Cooked food allowed the human body to digest it faster and help get more energy for the brain, overtime this led to an increase in the calorie intake of the brain therefore making our brains larger.

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.