Step 1

1 Position a rack in the middle of the oven and preheat to 425 degrees

Step 2

2 In a small, ovenproof skillet over medium heat, heat 1 tablespoon of the oil until shimmering

Step 3

3 Add the onion and cook for about 3 minutes, until softened

Step 4

4 Stir in the garlic, cumin and coriander; cook for 30 seconds more, then remove from the heat to cool slightly

Step 5

5 In a food processor or the pitcher of a blender, combine half the beans, the water, lime juice, chipotle pepper and its sauce, salt, the onion mixture and the remaining tablespoon of oil and process until a smooth puree

Step 6

6 Wipe out the skillet you used to cook the onion and put it over a low heat

Step 7

7 Transfer the bean mixture to the pan

Step 8

8 Stir in the remaining beans and the chopped cilantro

Step 9

9 Top with the cheese and place in the oven until the cheese is melted, about 15 minutes

Step 10

10 Garnish with the cilantro leaves, and let the dip rest for 5 minutes before serving