I've been making a lot of shrubs lately - they're easy and tasty and flexible. Here is a simple and straightforward way to use them:
1 1/2 oz rye whiskey (I can't remember what brand, but 100-proof is recommended)
3/4 oz Cocchi Americano
3/4 oz cranberry shrub* (see below)
Shake and strain over one large cube in a double old-fashioned glass.
I also wrote down a variation using Plantation Three Star (my new go-to white rum) which turned out nicely.
*Lightly muddle 1 cup of fresh cranberries in a large mason jar, then add 1/2 cup each of apple cider vinegar and white wine vinegar. Let this infuse in the refrigerator for a week, shaking every other day, then add 1 1/2 cups raw sugar. Let this infuse for another week, shaking daily, then fine-strain into a clean container. Add about 1/2 oz 100-proof (or higher) neutral grain spirit and keep refrigerated.