Hello Jeffrey,
The women worked in the house, and in the kitchen. The wife, or mother, if there are children, would typically manage the kitchen help. As an example:
her daughters
and often an outside servant or two,
and sometimes a female boarder
would do most of the hands-on kitchen and serving work.
The mother, besides managing the kitchen (deciding the menu, training the kitchen-helpers, stewarding the silverware, pantry and perishable items) would sometimes help in the cooking and serving of the food.
I'm not sure when the exact years were, but around 1910 outside kitchen help started to fade (domestic help now were choosing to be employed in factories),
To the wife, not having outside domestic help, was both a blessing (no more problems with 'the help') and a curse (now mothers had to do all the cooking themselves!)
P. S. Restaurant cooks in Victorian times typically were male.