In a medium sauce pan bring the water, butter, salt and sugar to a boil. Lower heat to medium.
Add in the flour all at once and stir until the batter pulls away from the side of the saucepan.
Let cool for 5-10 minutes.
Place the dough into an electric mixer with the paddle attachment.
Add the eggs one at a time until completely blended.
Place dough into a piping bag.
Squeeze the batter into about a two-inch round shape about 2-inches apart.
Preheat the oven to 425. Bake for 10 minutes than lower the oven temperature to 350 and bake for an additional 12-13 minutes. DO NOT OPEN THE OVEN DOOR.
Cool completely.
In the meantime, whip the cream with sugar and extract. Fold in the peaches. Pipe into the puffs with a large open nozzle.