The first time I experienced homemade yogurt was in Blagoevgrad, Bulgaria. It was around 1993, I was in middle school and my parents were in missionaries in the former Soviet Block country. We were in the Kotsakovi home, and my future sister-in-law’s mother pulled a bowl off the top of the fridge, removed the towel that covered it, and poured the lumpy white liquid into jars that went into the fridge…