Best made with wild blueberries.
Mix thoroughly first 3 ingredients.
Stir in milk.
Sift together and stir in flour, baking powder, salt, and blueberries.
Spread batter in greased and floured 9" square pan.
For crumb mixture, mix ingredients together.
Sprinkle on top of batter.
Bake 45 to 50 minutes.
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