This is the fudge I always make.
Funny story. Emily and I were making this in my new house. I decided to use the timer on my stove for the first time to measure 4 minutes. Unknowingly, I put in 4 hours. I kept stirring and stirring, trying to keep a 4 year old entertained, (time always goes extremely slow when you have a kid to entertain) and it finally dawned on me that the mixture I was stirring was thick as TAR! threw it out and got out more ingredients...
1 1/2 cups sugar
2/3 cup evaporated milk
2 tablespoons butter
1/4 teaspoon salt
2 cups miniature marshmallows
1 1/2 cups semisweet chocolate chips
1/2 cup pecans -- chopped
1 teaspoon vanilla
Combine sugar, evaporated milk, butter, and salt in a medium, heavy duty saucepan. Bring to a full roiling boil over medium heat, stirring constantly. Boil, stirring constantly for 4-5 minutes. Remove from heat.
Stir in marshmallows, chocolate chips, nuts and vanilla. Stir vigoursly for 1 minute until marshmallows are melted. Pour into foil lined 8 inch square pan; chill for 2 hours or until firm. Lift from pan, remove foil, cut into squares.
For milk chocolate fudge, substitute 2 cups milk chocolate chips.