Blueberry Buckle - cooking recipe

Ingredients

2 c. all-purpose flour
1/2 tsp. salt
3 tsp. baking powder *
1/2 c. shortening
1/2 c. sugar
1 egg, beaten
1/2 c. milk
2 tsp. lemon juice
2 c. fresh blueberries
1/3 c. sugar
1/3 c. flour
1/4 tsp. cinnamon
1/4 c. butter

Preparation

*Sulfate-phosphate (double-action) type.
Use 4 teaspoons tartrate or phosphate type.