Use cheesecloth, a loose-weave cotton material found in kitchenware stores and some supermarkets, to drain the yogurt so that it becomes firmer.
- 1 container (17.6 ounces) full-fat or 2 percent Greek yogurt
Place 2 layers of cheesecloth in a fine-mesh sieve over a large measuring cup or bowl. Add Greek yogurt and loosely cover with plastic wrap. Top with a plate that is at least 1 inch smaller than the inside rim of sieve and weight with a heavy can. Refrigerate 48 hours. Roll into balls (1 tablespoon each).
SourceEveryday Food, June 2009