Panna Cotta is a perfect warm weather dessert. There is no oven required and, with berries and stone fruit at their peak, it is a perfect backdrop for those bright flavors and colors.
Place water in a small bowl. Stir in gelatin. Set aside for 15 minutes.
Whisk together all the yogurt and 1 cup of milk/cream mixture.
In a saucepan, bring remaining milk/cream mixture and sugar to a simmer. Stir in water and gelatin mixture (it will dissolve immediately) and remove from heat.
Whisk this mixture into yogurt mixture, then stir in lemon juice at the end.
Pour into cups and chill at least 2 hours. Will hold for a couple of days.