French phrase
C'est fait maison.
Meaning
It's made in-house.
When to use it
Made by the business itself, not by an outside producer. Used to highlight that a product was not outsourced.
Example dialogue
Ce produit est fabriqué à l'extérieur ?
Is this product manufactured outside the company?
Non, C'est fait maison.
No, it's made in-house.