Dark Chocolate Éclairs - RedManShop

Ingredients

• Water — 1 cup (227g)
• Unsalted Butter, Cold — 8 tablespoons (113g)
• Table Salt — 3/8 teaspoon
• Unbleached All-Purpose Flour — 1 1/4 cups (150g)
• Large Eggs — 4
• Granulated Sugar — 1/2 cup (99g)
• Cornstarch — 5 tablespoons (35g)
• Large Egg Yolks — 4
• Milk, Whole Preferred — 2 cups (454g)
• Unsweetened Cocoa, Dutch-Process or Natural — 1/2 cup (43g)
• Unsweetened Baking Chocolate, Chopped — 1/3 cup (57g)
• Unsalted Butter, Cold — 1 tablespoon (14g)
• Semisweet Chocolate, Chopped — 2/3 cup (113g)
• Light Corn Syrup — 1 1/2 teaspoons
• Heavy Cream — 1/2 cup (113g)