To make egg wash: In small bowl, whisk together egg and water; set aside.
To make puffs: Heat oven to 425 degrees F. Butter two baking sheets or line
with parchment paper and set aside.
In heavy saucepan, bring water, butter, salt and pepper to boil. Add all flour
at once and stir vigorously with wooden spoon or rubber spatula until mixture is
Transfer to mixing bowl. Stir in one egg at a time until completely incorporated.
Continue stirring until mixture is smooth and silky. Stir in cheese.
Using pastry bag with large plain tip or two small spoons dipped in warm water,
form dough into small (1-1/4 inch) mounds, about 1-1/2 inches apart, on prepared
baking sheets. Brush tops lightly with reserved egg wash.
Bake for 10 to 12 minutes, or until puffed and golden.
Yield: about 3 dozen
Puffs can be made in advance and stored overnight at room temperature in airtight
container; reheat at 350 degrees F before serving.