Gingerbread Snacking Cake

Name: Gingerbread Snacking Cake
Ingredients: 8 tablespoons (1 stick) unsalted butter, room temperature, plus more for pan; 2 ½ cups all-purpose flour, plus more for the pans; 1 cup boiling water; 2 teaspoons baking soda; 2 teaspoons ground ginger; 1 ½ teaspoons ground cinnamon; ½ teaspoon ground cloves; ½ teaspoon ground nutmeg; ½ teaspoon salt; 2 teaspoons baking powder; ⅔ cup packed dark-brown sugar; 1 cup unsulfured molasses; 1 tablespoon freshly grated ginger; 2 large eggs, room temperature, lightly beaten; Confectioners' sugar, for dusting