Combine all ingredients and mix well. Pour into 8x12 inch baking pan that is well greased. Bake at 350F for 30 minutes.
Heat sugar, margarine and milk to boiling. Stir once. Boil for 7 minutes, add coconut and pecans. Beat until thick and cool. Pour over cake while still in pan. Cut into squares and serve.
Cajun Country -- New Iberia, Louisiana