This creamy dessert is in season for spring and summer!
Tie cinnamon stick, cloves and lemon zest together in a cheesecloth bag. Combine rhubarb, sugar and the spice bag in a large saucepan and bring to a boil over medium-high heat. Cook, stirring occasionally, until the mixture has the consistency of applesauce, 6 to 8 minutes. Discard the spice bag. Chill the rhubarb mixture about 1 hour.