Aero is produced by Nestle throughout the world — except for Germany, where it’s made by Trumpf. My attempts to google this have been fruitless, so I have no idea how or why this arrangement happened, but it’s not the only time Nestle has made a deal like this. I’m thinking of Kit Kat, which is produced by Hershey in the US and by Nestle in the rest of the world.
Whatever the reasoning may be, the two Aeros are surprisingly different.
They’re both essentially the same thing — they’re aerated milk chocolate bars, which means that they have hundreds of tiny holes that gives the chocolate an interesting texture.
Aside from that, they’re pretty different; the Trumpf version is aerated all the way through, and lacks Nestle’s solid chocolate coating. This makes a bigger difference than you’d think; it has a very pronounced lightness that makes it melt away almost instantly.
The flavour is also quite different from standard Aero, with an in-your-face milkiness that gives it a fairly unique personality. The chocolate flavour is muted, but not in an unpleasant way. It’s a bit too sweet (the Nestle version has the same issue), but is otherwise pretty tasty.
Manufactured by: Trumpf
Nutritional info (100 grams): 543 calories, 32 grams of fat (19 grams of saturated fat, unknown grams of trans fat), unknown mg of cholesterol, 170 mg of sodium, 56 grams of carbohydrates, unknown grams of fibre, 56 grams of sugar, 6.4 grams of protein.
Ingredients (Google translated from German): Sugar, cocoa butter, whole milk powder, cocoa mass, milk sugar, cream powder (milk), emulsifiers (soy lecithin, E476), vanilla extract. Cocoa: 30% minimum.