I have been using a hand mixer for making buttercream frosting and I got a stand mixer to use. Which attachment would I use? Flat beater or whip?

Thanks.

I always use the whisk - it breaks everything down so it blends smooth.

I use the beater blade (for meringue buttercreams too) - the whisk gets too much air into buttercream IMO.

Flat beater for me.

I really like the flat beater too. It makes nice, smooth icing. I also have a Sideswipe beater (the one with little silicone fins that scrape down the sides of the bowl as it mixes.) It took me a while to learn that, while good for cake batter, it works a lot of bubbles into BC. Enjoy your new toy!

Flat beater - the wisk will put a lot of air bubbles into your buttercream. Use wick for whipped icing, merangue and royal icing.

Flat beater - same reasons as above. I've used the whisk when re-whipping meringuine buttercreams from the freezer that didn't want to firm up with the paddle.