How can you change flavors in store-bought frosting? I'm in a time crunch and I bought pre-made frosting for some cupcakes I'm bringing to a potluck (I know, shame on me. The cupcakes are homemade at least.). Because I was rushing, I accidentally bought 'whipped cream frosting' when I was trying to go for 'cream cheese frosting'. I tried the frosting and I think it will be too sweet on my cupcakes. Is there any way I can fix this?? I think I have a tiny bit of cream cheese, could I add it to the frosting in some way to try to tone down the sweetness? My cupcakes are butternut squash spice (kind of a play on pumpkin spice) and they're rather sweet, which is why I was thinking the tang of cream cheese would go well.
Yes, you can certainly mix in something to change the flavor, and cream cheese sounds like a good option.  You will probably need to soften the cream cheese (microwave for a bit, but don't melt it), whip it, and then add in the store-bought frosting and whip until fully incorporated.  Depending on how much cream cheese flavor you like, I'd recommend something like 4 oz. per can of frosting.