With a batch of Blueberry-Cassis sauce in your refrigerator, you can make many quick desserts, including this luxuriously creamy fool.
In a large bowl, whip the cream to soft peaks with an electric mixer. Add the sugar, if you like, and mix until just blended. Gently fold in the blueberry sauce until incorporated (leaving a few streaks of sauce unincorporated gives the fool a nice, rustic look).
Chill the fool until ready to serve, for up to 4 hours.
Photo: Gary Junken