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150 g blueberry

300 g flour

half a package of baking powder (cca. 3.5 g) 

100 g caster sugar

250 ml buttermilk

Sift the flour and mix well with the baking powder, sugar and buttermilk. The original recipe indicates 310 ml of the buttermilk, I say 250 ml was enough for a good consistency. The dough should be slightly sticky. Carefully fold in the blueberries, try not to hurt them :), as the oven itself will be quite a trauma for the berries :). Roll out the dough to an approximate 1.5-2 cm thickness and cut 5 cm rounds of it, that will make 21 pieces. Place them in a buttered pan and bake them in an oven preheated to 200 C for about 20 minutes (until they become lightly browned). They're nice as they are (though not too sweet), but heavenly with mascarpone :). 

From The Australian Women's Weekly - Slim.