Steps
1. Heat olive oil in a skillet over medium heat.
2. Add the chopped onion and garlic, sautéing until translucent.
3. Season the chicken breast with salt and pepper, then add it to the skillet, browning on both sides.
4. In a bowl, mix cocoa powder, cumin, cinnamon, chicken broth, and peanut butter until smooth.
5. Pour the chocolate mixture over the chicken, cover, and let simmer for 15 minutes until the chicken is cooked through.
6. Serve the chicken with the sauce spooned on top, garnished with fresh cilantro.