Paris Brest with rhubarb pastry cream

Name: Paris Brest with rhubarb pastry cream
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: French
Ingredients: 30 g of soft butter; 40 g of cane sugar; 40 g of flour; 1 pinch of salt; 150 g of water; 80 g butter; 120 g flour; 3 eggs; 1 tablespoon of sugar; 1/2 teaspoon of salt; 500 rhubarb compote; 2 whole eggs and 2 yolks; 1 tablespoon of homemade vanilla sugar; 70 g of caster sugar; 10 carambars; icing sugar