Beat all the filling ingredients in a mixer until thick!

  Bring the water, butter and vanilla to a boil and then add flour. Stir constantly until it leaves the side of the pot and forms a ball.

Remove from heat. VERY IMPORTANT TO LET IT COOL.

After it is cooled, beat in 4 eggs, one at a time until the mixture is smooth

   Drop 1 Tbsp or 1 scoop onto a parchment paper-lined cookie sheet

   Bake at 400 degrees for 25-30 minutes.  LET IT COOL

 Slice in half and pipe or scoop the filling.  Dust with powdered sugar