Ingredients
Equipment
Method
Make the cake
- Heat the oven to 350°F and grease an 8-inch square baking dish.
- Whisk the flour, baking soda, ginger, cinnamon, and salt together in a medium bowl.
- Beat the butter and granulated sugar in a large bowl until creamy, about 2 minutes.
- Beat in the egg until combined, then mix in the molasses.
- Add the flour mixture in three additions, alternating with the hot water in two additions, mixing just until combined.
- Spread the batter evenly in the prepared baking dish.
Add the sauce and bake
- Stir the brown sugar and cornstarch together in a small bowl, then sprinkle the mixture evenly over the batter.
- Slowly pour the boiling water over the batter without stirring.
- Bake for 35 to 40 minutes, until the cake is puffed and set on top.
- Let the cake rest for 10 minutes before serving warm.
Notes
For the softest texture, serve the cake warm so the sauce stays spoonable. Store covered in the refrigerator for up to 4 days; it can be frozen for up to 2 months. For a dairy-free variation, use plant-based butter.
