Mix cashews/peanuts,sugar and corn syrup in a med. siprex bowl. Microwave on high for 4 min. Take out and microwave 3 more min. Take it out and add butter,butter flavoring and vanilla. Stir and return to microwave 2 min.take out and add the baking soda. Stir and fold until mixture is fluffy. Work quickly and spread out evenly on lightly buttered cookie sheet. Let sit until completely cooled. Break into pieces and keep in an airtight bag or container. Enjoy! (This was tested in a 1000 watt microwave)(Adjust your time with the wattage of your microwave)