Key Lime Parfaits

6 tablespoons butter
⅓ cup sugar
1 cup graham cracker crumbs

1 (14 ounce) can sweetened condensed milk
1/2 cup lime juice

1 cup chilled whipping cream

Additional 1 cup chilled whipping cream
⅓ cup powdered sugar
½ teaspoon vanilla

Melt butter in skillet over medium heat. Mix in sugar and stir until bubbling, about 1 minute. Mix in crumbs; stir until color deepens, about 3 minutes. Turn out onto tray and cool.

Stir condensed milk and lime juice in large bowl to blend (mixture will thicken). Using electric mixer, beat 1 cup cream in medium bowl until firm peaks form; fold into lime mixture. Fill a large pastry bag with the lime mousse mixture

In another bowl, beat additional 1 cup cream until soft peaks form; add ⅓ cup powdered sugar and vanilla; continue beating until firm peaks form. Fill a pastry with the sweetened whipped cream.

In each of six 8-ounce (or eight 6-ounce) parfait cups, layer 1 tablespoon crumb mixture, then mousse mixture, then whipped cream, then crumb mixture, mousse, and whipped cream. Top parfaits with remaining crumb mixture. If desired, garnish with lime wedge or strawberry slice. Refrigerate at least 1 hour.