Adapted from: http://foodwishes.blogspot.com/2012/11/best-pumpkin-pie-ever-come-for-pie-stay.html
1 batch of pre-baked (blind-baked) low-carb pie crust
130g pumpkin puree (warm)
100g carrot puree (warm)
26g egg (warm) (about 1/2 a large egg)
30g egg yolk (warm) (1 extra-large egg yolk)
92g cream (warm)
100g powdered xylitol or erythritol
1/4 ts molasses (for best flavor add double this amount, but only if you can handle the extra sugar added)
1/2 ts salt
1 ts vanilla extract
3 ts pumpkin pie spice (OR 1/2 ts ground nutmeg + 1 ts ground cinnamon + 1/2 ts ground ginger + 1/2 ts ground cloves + 1/2 ts ground allspice)
Preheat the oven to 320F/160C.
Combine all ingredients in a blender and blend until smooth, or mix by hand with a whisk and pour through a sieve to ensure a smooth and silky texture.
Place the pre-baked pie crust in its pie tin on a baking sheet, then fill the crust with pumpkin filling until completely full.
Bake for 15 minutes for mini pies, or 45 minutes for a normal pie. The edges of the filling should be set and not wet when touched, but the center should still be a little wiggly (though not liquidy).
If the exposed edges of your pie crust are already browned half-way through the baking process, cover them with a pie crust shield or a thin cover of aluminum foil to protect them from burning.
Let cool fully at room temperature on a cooling rack, then chill in the fridge for a minimum 2 hours, or overnight.