Set oven to 375°

In a mixer, cream the sugar and butter. Then add the crushed blueberries. Let mix on high for 5 minutes.

In a large bowl mix flour, salt, and baking powder. Add to the mixer slowly until you have a loose dough.

Freeze for 30 minutes then roll into balls. Lay out on parchment paper and bake for 10 - 12 minutes until getting brown on the edges.