Preheat oven to 425 degrees. Boil water, butter, salt & sugar. Add flour and remove from heat. Work mixture together and return to heat. Continue working the mixture until all flour is incorporated and dough forms a ball. Transfer mixture into mixing bowl & let cool for 3 minutes. Put mixer on stir or lowest speed, add eggs, 1 at a time. Once the mixture is smooth, put dough into piping bag and pipe into golf ball size shapes, 2 inches apart on parchment lined sheets. Cook for 10 minutes, turn the oven down to 350 degrees and bake 30 more minutes. Once they are removed from the oven pierce with a paring knife immediately to release steam (otherwise they will collapse). Cool completely.