cup evaporated milk
1. Put butter in pan and melt. 2. Add sugar and milk to melted butter; let boil on low and stir. 3. When bubbles are seen, let bubble for 20 minutes. 4. Add chocolate and marshmallow; stir over heat for 2 to 3 minutes. 5. When done, shut off heat and stir in vanilla. 6. Put in pan or cups and leave to let cool.