The first time I tried making fudge it was a disaster. I apparently did not allow the mixture to heat up as high and long as it should have been and the whole thing turned into a gross, sugary blob. After this failure, the husband bought a candy thermometer for me (which was a lifesaver), more ingredients, and I tried it again. It turned out perfect! I found this recipe on the Carnation Evaporated Milk label.
1 1/2 cups granulated sugar
2/3 cup evaporated milk
2 tbsp butter/margarine
1/4 tsp salt
2 cups mini marshmallows
1 1/2 cups semi sweet chocolate morsels
1 tsp vanilla extract
Line a 8 inch square baking pan with foil. Combine sugar, evaporated milk, butter and salt in a medium saucepan Bring to a full rolling boil over medium heat, stirring constantly. Boil, stirring constantly, for 5 minutes. The fudge should ready 240 degrees on a candy thermometer. Remove from heat. Stir in marshmallows, morsels, and vanilla. Stir for 1 minute or until marshmallows are melted. Pour into prepared baking pan, refrigerate for 2 hours or until firm. Lift from pan, remove foil. Cut into pieces.