*** MICROWAVE DIRECTIONS: Butter cookie sheet. Sprinkle banana slices and coconut in 30 cm circle on buttered cookie sheet. In 1.5 quart microwave-safe casserole or 8-cup measuring cup, combine sugar and corn syrup. Microwave on HIGH for 4 minutes. Stir in macadamia nuts. Microwave on HIGH for 4 to 6 minutes or until golden brown. Stir in margarine and vanilla; blend well. Microwave on HIGH for I minute. Add haking soda and stir gently until light and foamy. Quickly pour in thin stream over bananas and coconut on cookie sheet. Let cool 30 minutes. Break into pieces. 30 (2-inch) pieces.