Hi there, Elocyce. This is the frosting I put on all the wedding cakes that I make. The recipe makes between 7 and 7 1/2 cups. Doubling depends on how big your mixer is; it's too big to double in a 4 1/2 quart mixer, a 5 quart is still too small, and maybe it could fit in a 7-quart. I'd recommend doing a 1 1/2 x batch to get 10 cups of frosting at a time. It pipes roses beautifully. Susan

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