From the Sources
At the end of the parsha, Yitzchak marries Rivkah and Avraham marries Keturah and has six more sons. The Midrash says that Keturah is really Hagar. Hagar has done teshuva so she “smells nice”, hence her name change to “Keturah” which comes from “ketoret” meaning sweet smelling spices.
How to eat it
Well, if you were really up to it, you could make a wedding cake, or two, to symbolise the two weddings. Traditional wedding fruit cakes even include sweet spices which can be a reminder of Hagar’s name change to Keturah.
Or you could make a nice fruit compote with cinnamon sticks and other spices.
