Beat butter and sugar together until creamy. Add egg. Mix together flour, salt, baking powder, and spices. Add the dry ingredients alternately with the 1 cup milk, beating well. Coat dry blueberries in about 1/4 cup flour. Add to batter and stir carefully. (Coating the berries prevents them from sinking to the bottom of the cake.)
Pour into greased and floured Bundt or angel food cake pan. NOTE: The batter will only fill the standard pans about half way, which is fine - do not double this recipe. Bake at 375 degrees for 45 minutes. Allow cake to cool 5 minutes then carefully invert onto serving plate.
Glaze One: Combine the 1/2 cup granulated sugar and 1/2 cup lemon juice in a saucepan and cook over medium heat until dissolved. Carefully poke holes in warm cake and brush glaze over all surfaces of the cake as it cools.
Glaze Two: For final glaze, whisk the confectioner's sugar and 3 1/2 tablespoons lemon juice together. Pour over the top just before serving cake and allow it to drizzle down the side.