I have recently started to come up with a buiness, I have cost my recipe just the ingredients to $3.43 per dozen, How much extra should i put on to cover the cost of gas, labour etc?
Greetings and welcome to CC. This topic has been discussed extensively. Use the search box and type in "how to price cakes" or Jason Kraft.
Also make sure you are compliant with food safety laws in your area. Some municipalities require a license and/or an inspection before you can sell food to the public.