Cream cheese frosting shouldn't be out of the fridge for more than an hour or so, especially on a hot day. (On a cool day, you may be able to get away with leaving the frosting out for a little longer.) When cream cheese is left out at room temperature, it starts to soften. Whipped cream cheese starts becoming a regular, un-whipped cream cheese when it warms. Since most cream cheese frostings involve whipped cream cheese, you're best off leaving the frosting in the fridge until you need it.
Answers
February 15, 2010
Cream cheese frosting shouldn't be out of the fridge for more than an hour or so, especially on a hot day. (On a cool day, you may be able to get away with leaving the frosting out for a little longer.) When cream cheese is left out at room temperature, it starts to soften. Whipped cream cheese starts becoming a regular, un-whipped cream cheese when it warms. Since most cream cheese frostings involve whipped cream cheese, you're best off leaving the frosting in the fridge until you need it.