Line a 12-cup muffin tin with paper cupcake liners
Set a rack in the middle of the oven and preheat to 350 F
Whisk together the almond flour, coconut flour, keto chow, cinnamon, baking powder, and salt in a medium mixing bowl and set aside
In a large mixing bowl with an electric mixer, beat the butter with the swerve until light and fluffy, then add the eggs one at a time beating after each addition.
Add the dry ingredients and mix them on low speed.
Add the almond milk and vanilla and mix them in, then raise the speed to medium and mix until everything is fully combined. The batter will be thick.
Fold the prepared chayote squash and scoop the batter into the prepared muffin tin.
Bake in the preheated oven until the cupcakes are brown around the edges and set in the middle 25-30 minutes. They will fall slightly in the center.