Easy Zeppole San Giuseppe

A total classic and for good reason! Simply the best and you must make them! RECIPE:
For the Custard:
2 1/2 cups of Whole Milk
4 Egg Yolks
4 Tbsp of Granulated Sugar
4 Tbsp of All Purpose Flour
2 Tbsp of Cornstarch
1/8 tsp of Salt
Zest of 1/2 of a Lemon
1 Vanilla Bean, split down the center, seeds scraped from pod For the Zeppole, 1 Cup of All Purpose Flour
1 Cup of Water
½ cup of Unsalted Butter
3 Tbsp of Granulated Sugar
¼ tsp of Salt
Zest of ½ Lemon
1 Tbsp of Limoncello, optional
3 Large Eggs
1 Egg beaten with one tablespoon of water to make an egg wash 00:00 – Intro
00:29 – Make the Custard
04:30 – Make the Dough
08:43 – Form the Baked Zeppole
09:36 – Bake
11:17 – Fry the Zeppole
13:18 – Assemble
15:58 – Dig In!