Quick Texas-Style Spicy Pinto Beans - FINITE FOODIE

Ingredients

• 2 (15-once) cans pinto beans
• 1/2 small onion
• 1 tablespoon butter
• 1/2 cup water (or broth)
• 1 teaspoon chili powder
• 1 teaspoon ground cumin
• 1/2 teaspoon salt (or more, to taste)
• 1 pinch ground black pepper
• 1 small jalapeño pepper (or minced chipotle pepper in adobo, to taste (optional))