I've never made anything from a mix, but I've baked brownies, cookies, sponge, tarts, biscuits and bread. They have all turned out perfectly delicious, with

I've never made anything from a mix, but I've baked brownies, cookies, sponge, tarts, biscuits and bread. They have all turned out perfectly delicious, without any need for the addition of whatever emulsifiers and what-not you'll find in the premixed packets. Without having tried the alternative that's a pretty weak claim.