2 hours ago, Ddanno said:I've been trying to get hold of them on and off for a while but the only source here I know of is a speciality farm that sells out almost as soon as they're available (and they're bloody expensive).
I'm surprised to learn they are expensive in the UK. Maybe because they are little known and so, low demand? They certainly aren't expensive to produce.
Here they are towards the upper end of green vegetable prices, but I don't think anyone would call them "expensive". About the equivalent of ₤1.40 for 400 grams today. For others elsewhere, that's about $1.90 USD.