At this point, you don't owe Bride A anything. If you don't think you can accept the extra cake on your calendar, then call her now and tell her that your calendar is now fully booked and cancel the tasting.I am like you, I only take 2 weddings/weekend. i tell all my customers in advance of this fact and that the first 2 couples to plunk down their deposit gets the slot.
Whne I was building the commercial kitchen on to my home, the health dept said my kitchen could have NO access from the home. The zoning board said it HAD to have a common door since it was a home-based business. That's when I started asking for everything in writing. Who won? Well, there is a door from my commercial kitchen to the house!
Congrats on doing your first wedding cake! You have plenty of time, so do some smaller versions before the big day. You can certainly get 100 servings from 3 tiers so you should be fine.You really might want to check with the venue about licensing and insurance. Health laws are different from state to state, but in my state "gifted" cake is not regulated and doesn't have to come from a licensed baker or a licensed kitchen.
It's a late night for me here at the bakery. I have been working on a Notre Dame Leprechaun cake and a 3-tier square wedding cake covered with pictures of the wedding (they married couple of weeks ago in the Bahamas). My edible image printer was giving me a fit, and the leprechaun, which I'm cutting out using the Cricut, took me much longer than anticipated.
You'll get lots of answers on this one, but most range from 80 - 100% of the price. Personally, I charge the same as real cake for dummies because you're right, it takes me just as long as decorate and even though I don't have to bake layers, the styrofoam is actually more expensive than the ingredients to make the cake. HTH!
I have always just wrapped the ribbon around the cake twice. The buttercream won't seep through to the second layer. I use a corsage pin on the back of the cake to hold the ribbon onto itself. So many different ways to do the same thing; I learn something new here everyday!