- 1 2/3 cups all-purpose flour
- 2 teaspoons ground ginger
- 1 1/4 teaspoons baking soda
- 1 teaspoon ground cinnamon
- 3/4 teaspoon salt
- 1/4 teaspoon Chinese five-spice powder
- 1/2 cup white sugar
- 1/2 cup dark molasses
- 1/2 cup vegetable oil
- 1 egg, beaten
- 1/2 cup boiling water
- 1 cup powdered sugar
- 1/4 cup lemon juice
- 1 tablespoon grated lemon zest
- Preheat oven to 350 degrees F (175 degrees C).
- Grease and lightly flour a 9-inch square baking pan.
- Whisk flour, ginger, baking soda, cinnamon, salt, and Chinese five-spice powder in a bowl.
- Stir sugar, molasses, oil, and egg into flour mixture until just combined.
- Pour in boiling water and whisk until the batter is smooth and shiny, about 1 minute.
- Pour batter into prepared baking pan. Tap pan gently on the counter to remove any air bubbles.
- Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 35 minutes.
- Mix powdered sugar, lemon juice, and lemon zest in a bowl until sugar dissolves.
- Pour lemon juice mixture over cake while cake is still hot. Spread the mixture around with a spatula to ensure even distribution. Let cake cool completely before serving.