Heart-Shaped Chocolate Éclairs

Ingredients (16)

• + 1 vanilla bean add to pantry
• ✓ ½ cup white sugar
• + 5 tablespoons cornstarch add to pantry
• + ½ teaspoon kosher salt add to pantry
• ✓ 1 large egg
• + 2 large egg yolks add to pantry
• + 2 cups whole milk add to pantry
• + 4 tablespoons cold unsalted butter, cubed add to pantry
• + 4 tablespoons unsalted butter, cubed add to pantry
• ✓ ½ cup water
• + ½ cup all-purpose flour add to pantry
• + ½ cup heavy cream add to pantry
• + ¾ cup dark chocolate chips add to pantry
• + ½ cup fresh raspberries, or to taste add to pantry
• + 1 teaspoon cocoa powder, or to taste add to pantry
• + 1 teaspoon powdered sugar, or to taste add to pantry