Preheat an oven to 300 degrees and line a sheet tray with parchment paper. Separate the egg and whip the egg white with the cream of tartar until you have stiff peaks in a stand mixer.
Step 2
Set the whipped egg white aside. In the same mixer, use a paddle attachment to combine the cream cheese and peanut butter. Whip continually until the mixture is pastey but with a light texture.
Step 3
Next, mix in the egg yolk that was separated, the vanilla, and the stevia.
Step 4
Use a spatula to gently fold the egg whites into the cream cheese batter in 3 separate additions. Fold gently so you maintain the air bubbles in the egg whites.
Step 5
Scoop the batter into a piping bag or a ziploc bag with the corner cut out. Pipe approximately 14-16 puffs that are about 1 ½ inches wide.
Step 6
Bake the puffs for 18 minutes. To test for doneness, simply shake the pan to see if the puffs come loose from the parchment paper. Cool before eating.