Double decker taco supreme: a beef hard-shell taco wrapped in a refried-bean flour tortilla

Beans: cook onions and garlic, fry the spices, then mash in the beans.

Beef: grind cumin seed and minced garlic in a mortar and pestle; mix with chili powder and smoked paprika.

Let the ground beef sizzle undisturbed to develop a crust, salting the top; add the spice mix and tomato paste and crush with a mini potato masher into fine pebbles.

Add a little water to deglaze the onion, garlic and spices; if too much, simmer hard to tighten.

Chop iceberg lettuce and dice tomatoes; warm the hard taco shells.

Taste the beans and season with a little lime and salt.

Spread refried beans on a soft flour tortilla.

Fill a hard shell with beef, cheese, lettuce, crema, onion and tomato, with a drizzle of hot sauce.

Press the hard-shell taco into the bean tortilla, pushing the beans up the sides for full coverage.