Our lowish sugar, low resource and dodgy oven recipe is adapted from the BBC website: 225g (8 oz) self raising flour, 55g (2 oz) butter, 150ml milk, pinch of salt, make flour and butter into bread crumbs in a bowl, add milk to make into dough, stick in oven at default 200oC setting until it starts to go golden.
Round here we can get clotted cream, but different types of milk is trickier. This version won't be absolutely scone like, but given how fast they disappear it can't be bad.
We've been adapting BBC and National Trust recipes to low/no sugar versions, which has been wonderfully instructive in how much sugar goes in to each one and what it does to the structure.
I'm sure it'll benefit from adding some fruit.
Yes, sugar is definitely not only for the sweetness, but also has a huge impact texture-wise. My suspicion is that some of my buttercream problems come from reduced sugar... still haven't gotten around to doing a proper experiment on this, though!
No sugar for me is kind of meh for a lot of things that are supposed to be sweet, though (and I'm not fond of sugar replacements, which might alleviate this). There's a point where I feel that more sugar won't really affect the taste, only maybe the texture, so some of it can be cut from the recipe. But there's also a point under which the baked thing suddenly becomes boring and lackluster and not very delightful anymore. Somewhere inbetween, for me, there's the sweet spot. Literally