Simple Chocolate Fudge

Butter an 8-inch square baking pan; line with 2 crisscrossed pieces of parchment paper, leaving an overhang. Butter paper.

In a large saucepan, combine butter, marshmallows, sugar, cream, and salt; cook over medium, stirring occasionally, until marshmallows are melted, 8 to 10 minutes. Off heat, stir in vanilla, chocolate chips, and 1/2 cup walnuts until chocolate is melted.

Pour fudge into prepared pan, and smooth top; sprinkle with remaining walnuts. Let cool 30 minutes. Refrigerate until set, about 1 hour.

Using overhang, lift fudge onto a cutting board; cut into squares (6 rows by 6 rows).