Chocolate Fudge Loaf

Name: Chocolate Fudge Loaf
Ingredients: Cooking spray; 1 cup plus 2 tablespoons hot strong coffee or black tea (such as English breakfast) (see Note); 3/4 cup (about 3 ounces) plus 2 tablespoons Dutch-process cocoa (such as Valrhona or Guittard); 1/2 cup unsalted butter (4 ounces), melted; 1 3/4 cups packed light brown sugar; 1/3 cup canola oil; 2 1/4 teaspoons fine sea salt, divided; 2 large eggs; 1 cup crème fraîche or sour cream, divided; 1 1/2 cups unbleached all-purpose flour (preferably King Arthur) (about 6 3/8 ounces), sifted; 2/3 cup dark rye flour (such as Bob’s Red Mill) (about 3 ounces), sifted; 1 teaspoon baking soda; 1 cup chopped bittersweet chocolate (70% cacao) (from 3 [2-ounce] bars) (such as Valrhona or Guittard); 1 tablespoon light corn syrup; Flaky sea salt, for garnish; Cacao nibs, for garnish