Step 1

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.

Step 2

Stir in the sour cream, sugar, salt, and horseradish. Taste to adjust any of these ingredients.

Step 3

Store your relish in an airtight container in the fridge and plan to use within 10 days.