Homemade Double Cream

Description
Use it in place of whipped cream as a topping for fresh fruit or as an unusual and fabulous accompaniment to chocolate cake.
 * Contributed by Catsrecipes Y-Group
 * Source: my old recipes
 * Makes 4 cups.

Ingredients

 * 3 Cups heavy cream
 * 1 Cup buttermilk

Directions

 * 1) Mix cream and buttermilk in glass jar.
 * 2) Cover and allow to sit at room temperature for 12 to 24 hours or until thickened to the consistency of sour cream.
 * 3) The time depends on the temperature of the room.
 * 4) The double cream will continue to thicken as it chills.
 * 5) It will keep for about 10 days in refrigerator.