- Bloom the gelatin in 2 tablespoons of cold water.
- In a medium saucepan, heat the heavy cream, zest, ginger,and granulated sugar until dissolved.
- Remove from heat and whisk in the gelatin until completely incorporated.
- Add the buttermilk, then strain and allow to cool slightly.
- Fill molds then refrigerate.
- Allow 2 or more hours to set.