Wondering what to do with all that rhubarb?

This recipe got high marks from some Church Ladies recently:

3 pounds rhubarb, cut up


Mixed with
1 bottle vodka
1/4 cup grand marnier
Simple syrup (6 tablespoons sugar heated to boiling with 1/4 cup water)


Cool the syrup before mixing into the rest of the ingredients. 
Let stand 1-2 weeks in covered container.

Recipe is flexible - it originally called for 1/2 cup of the Grand Marnier, but my source preferred with less.

It's a lovely pink color and, according to reports, is dangerously good when mixed with 7-Up.

On a somewhat related note, I'm re-reading Anne of Green Gables now and this is just homey enough to make me think of Marilla's Raspberry Cordial.  (Medicinal purposes only, right?)