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Lemon-Blackberry Cake
Ingredients 3 c. cake flour 1 1/2 tsp. baking powder 1 tsp. salt 1/2 tsp. baking soda 1 c. butter 2 1/2 c. sugar 5 eggs 1 tsp. vanilla extract 1/4 c. lemon juice 2 tbsp. lemon juice 3/4 c. Buttermi…