Spiced Chocolate-Pumpkin Cake With Pumpkin Glaze

Name: Spiced Chocolate-Pumpkin Cake With Pumpkin Glaze
Cuisine: American
Ingredients: Unsalted butter or nonstick vegetable oil spray (for pan); 2 large eggs; ¾ cup (packed; 150 g) light brown sugar; 1 cup (230 g) plus 1 Tbsp. unsweetened pumpkin purée, divided; ½ cup extra-virgin olive oil; ½ cup plus 1 Tbsp. (or more) whole milk, divided; 1 tsp. vanilla extract; 1¼ tsp. ground cinnamon, divided; ½ tsp. Diamond Crystal or ¼ tsp. Morton kosher salt, plus more; 2 pinches of cayenne pepper, divided (optional); ½ cup (45 g) unsweetened Dutch-process cocoa powder; 1 cup (125 g) all-purpose flour; 1 tsp. baking powder; ½ tsp. baking soda; ½ cup (85 g) bittersweet or semisweet chopped chocolate or chocolate chips; 1 cup (110 g) powdered sugar; Pinch of ground cloves