Heat oven to 350F. Grease and flour 8x8 inch pan. Stir together flour, baking powder, baking soda and salt. Melt chocolate with shortening, blend in sugar. Add pineapple, eggs, vanilla. Beat 2 minutes with electric mixer. Add dry ingredients beat until well blended. Fold in chopped nuts. Pour into pan. Bake 35 minutes or until top springs back. Cut into 2 inch squares while warm.
Cajun Country -- New Iberia, Louisiana