01 -
Preheat oven to 400°F (204°C) and lightly grease a standard muffin tin to prevent sticking.
02 -
In a large mixing bowl, whisk beaten eggs together with sour cream until the mixture is smooth and uniform.
03 -
Stir in shredded cheese, Parmesan cheese, and finely chopped chives, ensuring even distribution throughout the mixture.
04 -
Carefully fold the chilled mashed potatoes into the wet mixture, mixing thoroughly while preserving some texture.
05 -
Gently mix in all-purpose flour and season the mixture with salt to taste.
06 -
Spoon the batter into each muffin cup, filling each approximately three-quarters full to allow room for expansion.
07 -
Place the muffin tin in the oven and bake for 20 to 25 minutes, or until the tops are golden brown and puffed.
08 -
Allow the cheese puffs to cool slightly before carefully removing from the muffin tin.