The single biggest cost driver is your print method. Print-on-demand (POD) has no minimum order and no upfront setup, but a higher cost per book. Bulk printing has a lower unit cost but requires a minimum order quantity and upfront setup — so it only pays off above a certain volume.
On top of print, budget for design and layout, recipe photography, and fulfilment or shipping. To see how these trade off for your specific page count and format, run the numbers in our cookbook publishing cost calculator.