Cookies and Cream Parfaits

1 envelope unflavored gelatin
1/4 cup cold water
2 cups vanilla ice cream, softened
1 cup whipping or heavy cream
22 Peanut Butter Patties cookies
1 teaspoon vanilla extract

In small saucepan, sprinkle unflavored gelatin over cold water;
let stand 1 minute. Stir over low heat until gelatin is
completely dissolved (about 3 minutes). Remove from heat and
let stand until lukewarm (about 1 minute). In blender or food
processor, process ice cream, whipping cream, 10 cookies, and
vanilla until blended. While processing, through feed cap,
gradually add lukewarm gelatin mixture and process until
blended. Let stand until mixture is slightly thickened, about 5
minutes. Meanwhile, coarsely crush remaining 12 cookies. In
parfait glasses or dessert dishes, alternately layer gelatin
mixture with crushed cookies; chill until set, about 2 hours.
Garnish if desired, with whipping cream and additional cookies.
Makes about 6 servings.