01 -
Line a 9x9-inch baking pan with parchment paper, letting edges extend over sides.
02 -
Combine semi-sweet chocolate chips and red food coloring in a bowl. Set aside.
03 -
Melt unsalted butter in large saucepan. Add granulated sugar and half-and-half cream, mixing until well combined.
04 -
In another bowl, combine white chocolate chips and marshmallow crème.
05 -
Stir vanilla extract, white chocolate chips, and marshmallow crème into butter mixture until smooth.
06 -
Transfer half of white chocolate mixture to bowl with red-tinted chocolate, stirring until chocolate melts.
07 -
Spoon dollops of both mixtures into prepared pan. Level surface with gentle shake. Create swirl patterns with small knife.
08 -
Allow fudge to cool completely. Lift from pan using parchment paper and cut into squares.