Chocolate Fudge Ice Cream Cake - TheSweetNerd

Ingredients

• 1 cup all-purpose flour
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1/2 cup plus 1 tablespoon unsweetened cocoa powder
• 1/2 cup hot water
• 4 tablespoons unsalted butter, at room temperature
• 1 3/4 cups dark brown sugar
• 1 large egg plus 1 large egg yolk
• 1/2 cup buttermilk
• 1/2 teaspoon pure vanilla extract
• 1 1/2 cups heavy cream
• 3/4 cup plus 2 Tablespoons sugar
• 1 Tablespoon corn syrup
• 2 ounces unsweetened chocolate
• 3/4 teaspoon kosher salt
• 1/8 cup unsalted butter (1 ounce), at room temperature
• 1 Tablespoon coffee extract