when baking the biscuit roulade cake for ROSE’S heavenly CAKES: Chocolate Apricot Roll with Lacquer Glaze (page 163), think of using two mixers simultaneously. i find many advantages of owning two mixers.
biscuit roulade has two separate mixing stages, and when each stage is done simultaneously with its own mixer, things go quick! i think the additional advantages of owning two mixers are:
1- your real time mixing capacity is doubled, yet you can still mix small quantities when needed.
2- you can power two attachments at once. for example, when making pasta, one mixer can roll sheets while the second mixer cuts fettuccine!
in my studio, i have the following mixers: a kitchen aid 5 qt, a kitchen aid 6 qt, and a bosch 7 qt. with honesty, if you add up the total cost, the expense is far less than purchasing a 10 to 20 qt mixer!
here is my biscuit roulade, whites whipped on its own mixer, than added to the mixer which whipped the rest of the ingredients: