Add rice protein and cinnamon. Mix well to combine.
¼ teaspoon ground cinnamon
Spoon and press into the bottom of a 7" square (or similarly sized) pan.
Bake for 12-16 minutes, just until cooked.
Meanwhile, mix pumpkin with spices and salt. Set aside.
½ 15oz can pumpkin, 1 teaspoon pumpkin pie spice, ¼ teaspoon sea salt
Mix whey and water, and then pour into the pumpkin mixture. Mix to combine.
½ cup water
Add egg, and mix well.
1 large egg
Pour over the baked crust, and bake for 40-45 minutes more (just until firm in the center).
Let cool completely. Run a knife around the edges and remove from pan before cutting.
Cut into 9 squares, and then (if desired), cut each square in half.
Enjoy!
Notes
Rice or pea protein powders will give the crust a melt-in-your-mouth crumble. Using whey or whey blends may work technically, but the will have a different (probably undesirable) mouthfeel.I don't suggest using plant-based proteins in place of the whey concentrate in the pie filling, as they would likely create a grainy mouthfeel. A whey/casein blend should work, although you will likely need to lessen the bake time.For more texture and flavor, try adding chopped pecans to the crust and/or sugar free chocolate chips (or white chocolate chips) to the pumpkin layer.