Question: do if choux pastry too runny?
Answer: Why my choux pastry dough is too runny? Added too much eggs. FIX #1: Next time add the eggs one at a time and check the consistency of the dough after the 3rd egg and additional egg as needed. FIX #2: Don't just add raw flour into the runny dough to thicken it, you won't get the proper pastry shells that way.