Ever mixed sweet and salty popcorn? Like salted caramel... it's strangely good. Propercorn make four flavours of popcorn, two of which are animal free, including this mix of sweet and salty. The plain salted flavour is also dairy-free, but the sour cream and worcester sauce flavours contain milk. We grabbed a bag of the sweet and salty stuff to see if it's as good as it looks.