Step 1

Place the shortbread cookie crumbs in a large resealable bag.

Step 2

Add the melted butter and the sugar; seal bag.

Step 3

Shake and/or mix with your hands until well-combined.

Step 4

Pour into pie plate and press into the bottom and sides of the pan; set aside.

Step 5

Pour boiling water into a large bowl; sprinkle the gelatin on top and stir until dissolved (about 1-2 minutes).

Step 6

Stir in the lemon juice and yogurt until smooth.

Step 7

Fold in the whipped topping and pour into prepared crust.

Step 8

Refrigerate until set, about 4-6 hours.

Step 9

Serve with additional whipped topping, if desired.