8 large egg whites
Preheat oven to 375. Butter 8 ramekins/souffle dishes and place on baking sheet.
Melt butter over medium heat, add flour and whisk. Add buttermilk and whisk for 1-2 minutes. Add salt, pepper, cheese and mix together. Add in spinach and egg yolks – stir and set aside.
In a cold metal bowl, beat egg whites with electric mixer until peaks form. Fold egg whites into spinach mixture in 3 additions. Divide equally among ramekins.
Bake for 30 minutes – until puffed and brown on top. Serve immediately and enjoy!