01 -
Preheat oven to 400°F. Lightly grease a 24-cup mini muffin tin and set aside.
02 -
In a large bowl, whisk together the mashed potatoes, beaten eggs, 3/4 cup of the shredded cheese, and chives until fully combined. Season with salt and pepper to taste.
03 -
Use a small scoop or spoon to portion the potato mixture into the prepared muffin tin cups, filling them nearly to the top. Top each puff with the remaining 1/4 cup shredded cheese.
04 -
Bake for 15-20 minutes until puffed, set, and lightly golden brown on top.
05 -
Let cool for 5 minutes, then use a butter knife or offset spatula to gently remove the puffs from the tin.
06 -
Serve warm, garnished with extra chopped chives and dollops of sour cream if desired.