2 cups heavy whipping cream 1/2 cup buttermilk
Warm cream in heavy small saucepan to lukewarm temp. (about 85 degrees). Remove from heat and mix in buttermilk. Put the mixture into a clean glass jar. Leave jar open and cover with a piece of waxed paper fastened with a rubber band. Let stand in warm area until slightly thickened, 24-48 hours. When the cream has clotted, remove the paper and replace it with the lid. Refrigerate until ready to use.