When making the choux pastry, it is important to be sure that each egg is fully incorporated into the batter before adding the next. Don't worry if the batter separates and looks curdled at first. Keep beating, and it will come together nicely.
Gougères freeze well. It might be fun to make extra with your club, so you can all take some home. After baking, allow them to cool completely. When you return home, spread the gougères out on a baking sheet, cover the sheet with plastic wrap and freeze them until they are firm. Then store them in sturdy plastic bags for several months.