HITACHINAKA, Ibaraki Prefecture--Riders reaching for a hand strap to hang on to on a train here may find themselves grabbing hold of a greenish yellow potato ... "hoshi-imo" dried sweet potatoes.

These simple baked sweet potato slices are roasted in the ... Chipotle powder: Both smokey and spicy, chipotle powder is made from dried, smoked jalapeño peppers. It is less spicy than cayenne ...

Add to the sweet potato flesh, with the remaining black beans, paprika, dried herb mix, garlic powder and onion powder. Season with salt and pepper and mix well. Line a baking tray with baking ...