Preheat oven to 350 F. Grease a 9x9-inch metal baking dish; set aside.
In a large saucepan, melt butter and chocoalte together over low heat, stirring frequently.
¼ cup butter, 2 ounces bittersweet chocolate
Remove from heat, and whisk in molasses and sugars.
⅓ cup molasses, 1 cup granulated sugar, ¼ cup brown sugar
Whisk in eggs until combined.
2 large eggs
Add flour, salt, cinnamon, and ginger; whisk until just incorporated.
1 cup all-purpose flour, ½ teaspoon salt, 1 teaspoon ground cinnamon, 1 teaspoon ground ginger
Pour into prepared pan.
Bake for 20-30 minutes, or until a wooden toothpick inserted in the center comes out with just a few fudgy crumbs.
Let cool in pan, and serve dusted with powdered sugar, if desired.
Video
Notes
Butter - I use salted butter in this recipe. If using unsalted butter, add an extra pinch of salt.
Bittersweet chocolate - I recommend using baking chocolate, not chocolate chips as chocolate chips can have ingredients that prevent melting.
Molasses - Robust, regular, or light molasses will work in this recipe. I don't recommend using blackstrap as it can be bitter.
Brown sugar - Dark brown sugar is preferable, but light brown sugar will also work.
All-purpose flour - It's important to use a light touch with the flour when making brownies. To properly measure the flour, either weigh it or sift/stir it to break it up. Lightly spoon it into the measuring cup and level.