Croquembouche

Name: Croquembouche
Prep time: 30 min
Cook time: 3 h 30 min
Total time: 3 h 30 min
Yield: 25 portion
Ingredients: 450 g whole milk; ½ vanilla pod; 140 g sugar; 30 g cornstarch; 1 pinch salt; 6 egg yolks; 1 tbsp butter, unsalted; 225 g water; 130 g butter, unsalted; 1 pinch salt; 1 tbsp sugar; 200 g all purpose white flour; 5 egg, large (65-70 g); 570 g sugar; 37 ounce water; 1 teaspoon lemon juice; 60 g vinegar; raspberry; sugar pearl sprinkles, any colour