Classic Chocolate Eclairs

Ingredients
Choux Pastry:

1 cup water
½ cup butter
1 cup all-purpose flour
¼ teaspoon salt
4 large eggs
Filling:

2 ½ cups cold milk
1 (5 ounce) package instant vanilla pudding mix
1 cup heavy cream
¼ cup confectioners’ sugar
1 teaspoon vanilla extract
Icing: