Soften the aromatics

• Heat the oil in a frying pan over medium heat.
• Add the onion and cook until soft and translucent.
• Stir in the garlic, cumin and chili powder and cook until fragrant.

Add the beans

• Add the drained pinto beans and season with salt and pepper.
• Pour in a splash of the reserved bean liquid to keep things moist.
• Simmer gently until the beans are heated through and softened.

Mash to a creamy texture

• Mash the beans with a potato masher until smooth but still slightly chunky.
• Loosen with more reserved liquid if needed and adjust the seasoning.
• Serve hot.