A Buck's fizz differs from a mimosa in the ratio of champagne to orange juice - mimosas have an equal mix.
Altered ingredient amounts. Excellent drink, a must for any special occasion. Many people like poinsettias better than mimosas but it all depends on taste. For a poinsettia, replace the OJ with cranberry juice! Also you should ALWAYS put a half ounce of triple sec into your Mimosas and Poinsettias, you'll see the difference. - 29 Sep 2008
Altered ingredient amounts. I found it to be a little to dry for my taste so I added more orange juice. Guests at my brunch loved it. - 29 Sep 2008
I don't know that there is any way to go wrong with Mimosa. We have them every year for Christmas and they are great. - 29 Sep 2008