The stout added to the batter keeps the cupcakes extra rich and moist, while dark-brown sugar and vanilla extract intensify the chocolate flavor. The cupcakes will stay fresh and delicious up to 3 days in the fridge.
For baked treats that are hot and fresh from the oven, mix and shape these scones up to two weeks in advance, and freeze them in a single layer on a baking sheet. Bake just what you need, adding five minutes of baking time.
In Native American lore, the three sisters refer to corn, squash, and beans, which were traditionally grown together. The cobbler filling can be made ahead and baked with the topping just before serving.