Asian Pear-Ginger Frozen Yogurt

This pear-ginger frozen yogurt is both healthy and tasty.  Because it's lower in fat than ice cream, it doesn't have quite the creamy quality of a full-fat ice cream, but it's still a very satisfying dessert, kind of like gingery pear snow.  I thought the frozen yogurt had plenty of ginger flavor with only 2 teaspoons of grated ginger, but feel free to add the full amount if you're a ginger fanatic. 

Asian Pear-Ginger Frozen Yogurt (adapted from The Steamy Kitchen Cookbook)
Makes around 2 pints

2 very large Asian pears
1/2 tsp freshly squeezed Meyer lemon juice
2-3 tsp freshly grated ginger
1-1/2 cups (375 g) Greek-style plain yogurt
1/2 cup sugar
Generous pinch of salt

1. Peel and dice the pears.  Toss with the lemon juice to prevent browning.  Put the pears and ginger in a blender and puree until smooth.  (You might have to use a tablespoon of water or so to get things moving.)
2. In a large bowl, combine the pear-ginger mixture with the yogurt, sugar, and salt.  Chill at least 1 hour.
3. Freeze in your ice cream maker.