Preheat the oven to 350°F. Spray the molds with non-stick spray and set them to the side.
Non-stick spray
In a large bowl, add the flour, sugar, cocoa powder, baking powder, and salt. Mix until combined.
2 1/4 cups all-purpose flour, 3/4 cup brown sugar, 5 Tablespoons unsweetened cocoa powder, 2 teaspoons baking powder, Pinch of salt
Melt the semisweet chocolate and butter in a medium microwave-safe bowl in the microwave in intervals of 20 seconds, until melted and smooth. Be careful not to burn the chocolate. Add the buttermilk, eggs, and vanilla to the chocolate mixture, stirring well.
1/2 cup semisweet chocolate chips, 2 Tablespoons salted butter, 3/4 cup buttermilk, 2 large eggs, 1 teaspoon pure vanilla extract
Add wet ingredients into the dry ingredients, little by little. Mix until combined. Be careful to not over mix.
Using a piping bag, fill each pan cavity about 2/3 full, so they do not overflow.
Bake for 8 to 10 minutes or until the donuts bounce when you touch them. Let them cool for 5 minutes before removing from the mold. Let them cool completely before adding the glaze.
Add the chocolate glaze, and sprinkles. Enjoy!