Clayudas are a Oaxacan dish similar to pizza. Tortillas are slathered with a spicy black bean purée, baked, then sprinkled with various toppings.
1. Preheat oven to 450°F. Heat oil in saucepan over medium-high heat. Add onion, and cook 5 minutes, or until translucent. Add garlic and cumin, and cook 1 minute more. Place onion mixture in blender with beans, chipotle chile, brown sugar, and 3 Tbs. water. Blend until smooth. Season with salt and pepper.
2. Place 2 tortillas each on 2 baking sheets. Spread bean mixture on tortillas, and bake 5 to 7 minutes, or until edges become golden.
3. Toss slaw in bowl with cilantro and lime juice. Season with salt and pepper. Top each clayuda with slaw, and cut into triangles.