Preheat the oven to 350°F (177°C). Grease a 9-inch square or 9-inch springform baking pan (or any 2.5 quart baking dish) with nonstick spray. Set aside.

In a medium bowl, whisk the flour, brown sugar, and cinnamon together. Cut in the cold butter using a pastry blender or a fork. Mix to create clumps and crumbs. Set aside.

Whisk the flour, baking soda, baking powder, salt, cinnamon, nutmeg, cloves, and ginger together in a large bowl until combined. In a medium bowl, whisk the pumpkin, brown sugar, oil, maple syrup, and milk together until combined. Pour the wet ingredients into the dry ingredients and stir until *just* combined. Avoid over-mixing the batter. Batter will be very thick. Spoon/pour the batter into the prepared baking pan. Spread to make an even surface. Pour the crumb topping evenly on top and gently press them down into the batter.

Bake the cake for 30-35 minutes. Check the cake’s doneness at the 30 minute mark by inserting a toothpick into the center. If the toothpick comes out clean or with a couple moist crumbs, the cake is done. If the toothpick has wet batter on it, bake the cake for 5 more minutes or until the toothpick comes out clean.

Whisk the icing ingredients together. Add an extra splash of creamer/milk to thin out if desired. Drizzle over warm or cooled cake. (We like serving this warm.)

Cover leftover cake tightly and store at room temperature or in the refrigerator for up to 3 days.