Ingredients:

• One 5-ounce can of 2% evaporated milk
• 1 2/3 cups granulated white sugar
• ½ teaspoon salt
• 12 large marshmallows, quartered
• 2 cups white chocolate chips
• ¼ cup grated lime zest (about 5 limes)
• 2 tablespoons key lime juice (from 5-7 limes)

Instructions:

1. Line an 8×8-inch square pan with aluminum foil and grease the foil with butter. An 8-inch pan works best, as a 9-inch pan makes the fudge too thin.
2. In a large, heavy saucepan (or double boiler), combine the evaporated milk, sugar, and salt over medium heat. Stir as it comes to a boil, then reduce to medium-low and continue boiling for 5 to 6 minutes, stirring constantly (if using a candy thermometer, heat to the soft-ball stage, but it’s optional).
3. Remove from heat and add the marshmallows, white chocolate, lime zest, and lime juice. Stir until the marshmallows and chocolate are melted and the mixture is smooth.
4. Pour the fudge into the prepared pan, tilting if needed to spread it evenly. Allow it to cool completely, then slice into 1-inch squares.