On a baking sheet, measure a piece of parchment paper. Use a good size cake tin to trace a circle (8-10 inch is good). Turn the paper over so the circle is underneath and grease the paper with baking spray.
Add the milk, sugar, butter, and salt in saucepan over medium high heat. Bring just to a boil.
In separate bowl, crack eggs. You can beat them if preferred.
Remove from heat and add in flour all at once, whisking vigorously until incorporated.
Put saucepan back on medium heat and stir continuously with a wooden spoon until the mixture is like a batter and a paste, and it comes away from the sides of the pan.
Preheat the oven to 425 degrees.
In a metal bowl or bowl of a mixer, run on low speed for 2-3 minutes to cool off the pate a choux. If mixing by hand, allow 3-5 minutes to cool before continuing with this step.
On low speed or by hand with a wooden spoon, add one egg at a time (if eggs are beaten, add a little at a time) and allow it to mix in with the choux.
Fill a piping bag and use a wide 1" round tip, if possible. Pipe a ring, following your circle trace. Pipe a second ring right inside the first, and then pipe a third ring on top and in between the two rings.
Brush a beaten egg over the choux. Sprinkle flaked almonds over the top, and dust liberally with confectioners sugar.
Bake the Pate a Choux on 425 degrees for 10 minutes, and then lower to 350 degrees for about 30 minutes. Make sure the choux is golden brown and hardened on the outside, but watch it doesn't get too dark. Cooking time will vary, depending on your piping style.
Allow the Pate a Choux to cool for 10 minutes, then moving it to a wire rack to cool completely.