A recurring theme in stories revolving around food, the maker of the food will often state that his creation is made with love.
The cook doesn't usually mean the food was made with The Power of Love
(it can in a few cases), the cook generally means that he worked hard in making it, treating it like it was a child, making sure everything is perfect.
This trope will often be said when the eater of the food is so entranced with the taste, that he will ask the cook what the secret ingredient is.
Not to be confused with Made of Good