01 -
Line an 8x8-inch baking dish with parchment paper, leaving some overhang for lifting out the fudge later.
02 -
Add sugar, evaporated milk, and butter to a medium saucepan and place over medium heat. Stir until butter is melted and sugar begins to dissolve.
03 -
Bring to a gentle boil and cook for 4 to 5 minutes, stirring constantly to prevent burning.
04 -
Turn off the heat. Add white chocolate chips and mini marshmallows. Stir until completely melted and smooth.
05 -
Add vanilla and powdered sugar. Stir well until combined and the mixture thickens slightly.
06 -
Add the strawberry preserves and gently swirl it through the mixture without fully mixing.
07 -
Pour the mixture into the prepared dish and smooth the top.
08 -
Drop red food coloring across the surface and swirl using a toothpick or knife. Add white food coloring and swirl again for a marbled look.
09 -
Refrigerate for at least 4 hours or until firm.
10 -
Lift out of the pan, slice into squares, and serve.