Grease a cookie sheet with some margarine. Measure baking soda and have ready. Combine sugar, syrup and margarine in saucepan. Cook on high heat, stirring all the time. When ingredients are melted, add nuts. It will foam up. Continue to stir and cook until the color of the mixture is close to the color of peanut butter(this will only take a few minutes, but the time will vary according to how hot your stove is). Watch carefully as it can go from the right consistency to burnt very easily. Immediately take off heat and add the baking soda. Pour out onto prepared pan and pat out, being careful not to burn yourself, into a 1/4 to 1/2 inch thickness. When cool, break in to pieces. Enjoy!