Black Bean Tostadas with Lime Cream

Why buy a can of refried beans when you can make your own for less, and they taste a whole lot better? Packs of four small avocados may be more economical than individual ones, and are just the right size for salads.

Serves: 4    Preparation time: 15 minutes    Cooking time: 10 minutes

2½ cups drained canned black beans, liquid reserved, or cooked dried black beans (see pages 8–9), reserving ¼ cup of the cooking water

½ red onion, cut in half

1 large garlic clove

juice of ½ lime

2 tablespoons olive oil

2 teaspoons chipotle chili paste

1 teaspoon ground cumin

1 teaspoon ground coriander

4 soft corn tortillas

½ Romaine lettuce, shredded

2 small avocados, pitted, peeled and sliced

1 cup feta cheese, crumbled

sea salt and freshly ground black pepper

1 recipe quantity Tomato and Chili Salsa (see page 22), to serve

LIME CREAM

scant ½ cup crème fraîche or sour cream

finely grated zest of ½ unwaxed lime

1.   Mix together the ingredients for the lime cream in a bowl, cover and leave in the refrigerator until needed.

2.   Put half the black beans along with the onion, garlic, lime juice and ¼ cup of the drained liquid from the beans in a blender. Pulse briefly to a coarse puree, then tip into a medium, nonstick skillet with 1 tablespoon of the oil, the remaining beans, chipotle chili paste, cumin and coriander. Season with salt and pepper, stir and cook over medium-low heat 5 minutes until heated through.

3.   Meanwhile, heat the remaining oil in a separate skillet and cook the tortillas, one at a time, 1 minute on each side until heated through and golden in places. Put a tortilla on each serving plate and top with the lettuce, refried beans, avocados and feta. Serve with the salsa and lime cream.

A tip for cooking dried beans is to add a 5-inch strip of kombu (dried kelp used in Japanese cooking) to the cooking liquid. This helps soften the outer skin and gives a creamier, softer texture. The kombu works by breaking down the starchy carbohydrates in the beans.

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