Step 1

Preheat the oven to 350*

Step 3

Line a 9x9 baking pan with aluminum foil and spray it with a nonstick spray

Step 5

In a small bowl, melt the butter in the microwave

Step 7

Add in the granulated sugar and the graham cracker crumbs and combine until it is completely mixed

Step 9

Press the crust mix into the pan and press to make an even layer

Step 11

Bake for 5 minutes, until there is slight color around the edges

Step 13

Remove from the oven and set to the side

Step 15

In a medium, microwave safe bowl pour in the sweetened condensed milk, add in the chopped white chocolate and heat on 30 second intervals in the microwave, stirring after each time

Step 17

Continue the process until all the white chocolate is melted and blended in with the sweetened condensed milk

Step 19

Stir in the lime zest and the lime juice, blend well

Step 21

Scrape the fudge into the pan with the cooled crust.

Step 23

Spread the fudge into an even layer

Step 25

Place into the refrigerator until set. This will take about 2 to 3 hours or you can cover and place it in the refrigerator overnight.

Step 27

Using the foil, remove from the pan and cut into 1 inch squares

Step 29

Store in an airtight container inside the refrigerator for up to 2 weeks

Step 31

Allow to sit at room temperature  for 20 minutes before serving