Greek-Style Yogurt
["2 Tbsp. dry milk powder", "2 1/4 c. skim milk", "2 Tbsp. plain yogurt with live culture"]
["Dissolve the milk powder in the milk and simmer 5 minutes. Pour into a heatproof bowl and let cool until you can just dip your finger into it.", "Add the yogurt and stir.", "Cover the bowl with plastic wrap; wrap it in a thick towel and leave it in a warm place for 5 to 6 hours.", "Alternatively, you can make the yogurt in a wide-necked vacuum bottle."]
["milk powder", "milk", "live culture"]