Prepare the prickly pear juice: Slice both ends of the pear off. Make a long slit vertically on one side of the fruit. Grab one side and peel the skin off of the fruit inside. Place the inside into a blender and pulse until it is liquefied. Then use a fine mesh strainer to get the juice from the pulp and seeds. For this recipe, one decent-sized pear should make enough juice.
Preheat the oven to 350F
In a large mixing bowl, combine all of the crust ingredients until crumbly
Press into a greased 8x8 baking dish
Bake for 15 minutes
Meanwhile, use an electric mixer to combine all of the filling ingredients.
Pour the filling over the warm crust then bake for 20 minutes or until the filling is set