3 cups white baking pieces
1 (14 ounce) can sweetened condensed milk
2 teaspoons finely shredded lime peel
2 tablespoons bottled key lime juice or regular lime juice
1 cup chopped macadamia nuts, toasted, if desired

Line an 8-inch square baking pan with foil, extending foil over edges of pan. Butter foil; set aside.

In a large heavy saucepan cook and stir baking pieces and sweetened condensed milk over low heat just until pieces are melted and mixture is smooth. Remove from heat. Stir in lime peel and lime juice. Stir in nuts.

Spread mixture evenly in prepared pan. Cover and chill about 2 hours or until set.

Lift fudge from pan using edges of foil. Peel off foil; cut into pieces. Store in an airtight container at room temperature for up to 1 week or in the freezer for up to 2 months.

Makes 2 1/2 pounds.