Profiterals - The Elegant Artisan

Ingredients

• 1 ½ cups water
• 1 stick butter plus 1 tablespoon unsalted butter, cut into cubes
• 1 tsp sugar
• ½ tsp salt
• 200 g all-purpose flour (about 1 1/2 cups)
• 8 large eggs
• 2 cups milk
• ¼ cup white sugar
• 2 egg yolks
• 1 egg
• ¼ cup cornstarch
• ⅓ cup white sugar
• 2 tbsp butter
• 1 tsp vanilla extract
• 4 oz bittersweet chocolate
• 4 tbsp unsalted butter, softened