My nephews and nieces gave this peanut butter jelly bar recipe a unanimous thumbs up!   Ingredients 2 1/2 cups all-purpose flour 1/2 teaspoon baking powder 2 sticks (1 cup) salted butter, softened 1 cup granulated sugar 1 large egg 2 teaspoons vanilla extract 3/4 cup jam or jelly 1/2 cup creamy peanut butter 2 […]