Gingered persimmon and asian pear crisp

1. Preheat oven to 375 degrees.
2. peel persimmons and cut into ½-inch slices to yield 3 cups.
3. Core pear and cut into ½-inch slices to yield 2 cups.
4. Finely chop tangerine zest.
5. combine the persimmons, pears, juice, sugar, salt, ginger and cardamom in an 8-inch square baking pan. topping: combine the butter, brown sugar, tangerine zest, salt, flour and cardamom in a food processor; pulse a dozen times or so to combine.
6. Add the oats, pulsing just to combine.
7. sprinkle the topping over the fruit and bake for 40 minutes, or until the fruit is bubbling and the top is deep brown.
8. Let cool 15 minutes before serving.
9. serve with big scoops of french vanilla ice cream, if desired.
10. Serves 8.