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I'm trying to figure out how much it makes beyond the obvious 3+ lb.
According to this random chart that I just googled because my Cake Bible is at work, you'd need about 12 cups or 3 qt (since you won't be filling the dummies). https://www.wedding-cakes-for-you.com/wedding-cake-icing-chart.html
My meringue buttercream with a pound of butter and far less sugar makes about a quart and a half so I think you're going to need to double it.
Good luck!
I'm trying to figure out how much it makes beyond the obvious 3+ lb. I'm guessing not more than 2 quarts and that you'd want to 1.5x or 2x it.
According to this random chart that I just googled because my Cake Bible is at work, you'd need about 12 cups or 3 qt (since you won't be filling the dummies). https://www.wedding-cakes-for-you.com/wedding-cake-icing-chart.html
By David Ross,
