Patience
1 ½ cups white sugar
1 (7 ounce) jar marshmallow creme
2/3 cup evaporated milk
1/4 cup butter
1/4 teaspoon salt
2 cups milk chocolate chips
1 cup semisweet chocolate chips
1/2 cup chopped nuts
1 teaspoon vanilla extract
Gather all ingredients. Line an 8-inch square pan with aluminum foil; set aside.
Combine sugar, marshmallow cream, evaporated milk, butter, and salt together in a large saucepan over medium heat; bring to a full boil and cook for 5 minutes, stirring constantly.
Remove from heat and add milk chocolate chips and semisweet chocolate chips; stir until chocolate is melted and mixture is smooth. Stir in nuts and vanilla.
Pour into prepared pan; chill in refrigerator for 2 hours, or until firm.