Preheat oven to 425°F Fahrenheit (220 degrees C)

Whisk together pumpkin puree, egg yolks and egg in a large bowl until smooth. Add sweetened condensed milk, cinnamon, ginger, salt, nutmeg and allspice; whisk until combined

Prick pie crust with a fork on bottom and sides and place in oven for a few minutes till hot

Pour filling into the pie shell and lightly tap on the work surface to release any air bubbles.

Bake in the pre-heated oven for 15 minutes.

Reduce heat to 350°F Fahrenheit (175 degrees C) and bake until just set in the middle, 30 to 40 more minutes. A paring knife inserted into the filling should come out clean. Allow to cool completely and enjoy!