Step 1

Preheat oven to 350 degrees F. Coat a 9-by-5-inch loaf pan with cooking spray. Whisk flour, cinnamon, baking soda, salt, ginger, nutmeg and allspice in a large bowl. Whisk pumpkin, maple syrup, oil and eggs in a medium bowl. Make a well in the center of the flour mixture; pour in the pumpkin mixture and whisk until thoroughly combined, about 1 minute.

Step 2

Pour the batter into the prepared pan; bake until a wooden pick inserted in the center comes out clean, 45 to 50 minutes. Let cool in the pan on a wire rack for 5 minutes. Run a knife along the edge of the pan to remove the loaf; place on a wire rack to cool completely, about 1 hour.

Step 3

Meanwhile, beat confectioners' sugar and cream cheese with an electric mixer on medium speed until combined, about 1 minute. Add vanilla and beat until combined. Spread over the cooled bread.