Make 8 - 12 browniesPreheat oven to 350 F (170 C)Grease 8×8 pan with butter or line with parchment paper.In a large bowl, mix together flour, salt and baking soda.Mix in sugar and zest of one lemon peel.Make a well in middle. Add in eggs, yogurt, vanilla and oil. Stir well.Add in juice of lemon. Pour batter into pan.Bake for 20 minutes.Cool. Cut into squares.Using a strainer or shaker, sprinkle powdered sugar over tops of brownies. Enjoy!!