can divinity be made from fluffy white frosting

Great question.  You not only can, you should!  Here is the no-bake recipe, with variations.  

No-Cook Divinity

Betty Crocker® fluffy white frosting mix

1 package Betty Crocker® fluffy white frosting mix

1/3 cup light corn syrup

1 teaspoon vanilla

1/2 cup boiling water

1 package (16 ounces) powdered sugar (4 cups)

1 cup chopped nuts

Beat frosting mix (dry), corn syrup, vanilla and boiling water in small bowl on low speed until blended.*  Beat on high speed until stiff peaks form, about 5 minutes.  Transfer to large bowl.  Gradually beat in sugar on low speed. Stir in nuts.  Drop mixture by teaspoonfuls onto waxed paper.  Let stand until outside of candy feels firm, about 4 hours.  Turn over and allow to dry at least 12 hours.  Store in airtight container.  5 to 6 dozen candies.

*Because of extreme stiffness of mixture, use only standard (not hand) electric mixer.

Spanish Crunch:  Substitute dark corn syrup for the light and salted shelled Spanish peanuts for the chopped nuts.

Candied Cherry Delights:  Substitute 1 teaspoon almond extract for the vanilla and 1 cup cut-up candied cherries for the nuts.  If desired, tint with a few drops red food color.

Peppermint Delights:  Substitute 1/2 teaspoon peppermint extract for the vanilla and 1 cup crushed peppermint candy for the nuts.  If desired, tint with a few drops green food color.

Do-ahead Tip:  Divinity can be frozen in airtight container up to 2 months.