Preheat the oven to 350 degrees F (175 degrees C). Grease a 9-inch square baking dish.

Whisk flour, baking powder, baking soda, cinnamon, ginger, salt, nutmeg, allspice, and cloves together in a large bowl.

Place molasses, canola oil, applesauce, brown sugar, white sugar, and eggs into a mixing bowl and beat until well combined. Add flour mixture and mix, starting on low speed, until just combined. Mix in boiling water until combined; mixture will be very wet. Pour into the prepared baking dish.

Bake in the preheated oven until center is rounded and edges are golden, 30 to 35 minutes. Cut into squares. Best served warm, or at any temperature.