Freeze the parfait glasses for about 1 hour before assembling to keep the yogurt from melting too quickly.
Combine first 3 ingredients; cover and chill at least 1 hour.
Spoon 1 tablespoon cookie crumbs into each of 8 (8-ounce) glasses; top each with 3 tablespoons pear mixture and 3 tablespoons yogurt. Repeat layers once, ending with the yogurt. Top each with 1 tablespoon almonds.
This is excellent. It did not proportion out quite right, unless we measured wrong. We also need to cut this to a reasonable size for fewer people.