Managing business orders including delive\pickup

I’m looking for somone that can help me to figure out what is the best tool/site/app that I can use to run a small Desserts business. More info about the business : a small desserts business from home,preparing desserts like waffle ,crepe mini [login to view URL] desserts as customers can add extra ,remove and change the dressing,fruits etc. Things I need in this website/tool/app: User able to see the menu online including prices User able to order from this tool including ability to add extra and customise his order User able to place order online and pay online(securely ) and pay cash on the pickup if they like to do this User able to put the pickup time and delivery that suits him We need to have able to control the delivery time as if we have another delivery at 9am it means I can do another delivery until 10am for example. Also I need to be able to do turn off the paying online and make it paying cash on delivery or pickup. We need to have ability to track all the coming orders through easy way so we can know if there is order in advance and what orders we have today . We need to be able to put the site offline for update or just to take day off . We have menu ready and Iwe have used square website before which could help you to know what we exactly after as the website pretty good but missing some functions .