Preheat your oven to 350°F (175°C) and line a 9x9-inch baking dish with parchment paper.

Melt ½ cup of unsalted butter and combine with 1 cup of brown sugar until glossy.

Mix in 2 eggs, ½ cup of molasses, and 1 teaspoon of vanilla extract until smooth.

Whisk together 1 cup of flour, 2 teaspoons of ginger, 1 teaspoon of cinnamon, 1 teaspoon of baking powder, and ½ teaspoon of salt in a separate bowl.

Gradually stir the dry ingredients into the wet mixture until just combined.

Spread the batter into the prepared baking dish and bake for 30-35 minutes.

Let the brownies cool in the pan for about 10 minutes before lifting them out to cool completely.

Dust cooled brownies with confectioners' sugar and slice into squares.