Key Lime Trifle

Key lime, freshly squeezed juice

Key lime peel

box Betty crocker angel food cake mix

Nature valley oats 'n honey crunchy granola bars

each) sweetened condensed milk, sweetened

containers (8 oz each) frozen extra-creamy whipped topping with real cream, frozen creamy whipped

Whipping cream

Water called

Bars (3.5 oz each) good-quality white chocolate, coarsely chopped (do not use baking chocolate)