Tomboy Cake

1½ cups all purpose flour

1¼ cups (4 1/2 ounces) unsweetened cocoa powder

1½ tsp baking soda

½ tsp baking powder

¾ tsp kosher salt

2 ounces 70 percent cacao chocolate, coarsely chopped

1 cup water, boiling

1 cup buttermilk

½ tsp vanilla extract

2 large eggs, room temperature

½ cup vegetable oil

2¼ cups sugar