2Tbspprepared horseradish or horseradish cream, or more to taste.
Instructions
Pulse the cranberries and onions in a food processor until finely ground. Watch carefully because you don't want to create a puree, you want some texture remaining.
Stir in the sour cream, sugar, salt, and horseradish. Taste to adjust any of these ingredients.
Store your relish in an airtight container in the fridge and plan to use within 10 days.