In a large skillet, heat the olive oil over medium-high heat. Add the onion and cook until translucent, about 5 minutes.
Step 2
Stir in the cumin, paprika, salt, garlic powder, and oregano. Add the chicken and stir until the chicken is well coated in the seasoning. Pour in the water and add the chipotle pepper and chipotle in adobe sauce. Stir until well combined. Reduce heat to low and simmer for about 3 to 5 minutes or until mixture thickens, stirring occasionally.
Step 3
To assemble the tacos, spoon the chipotle chicken into to warm tortillas (corn or flour). Top with desired toppings. Serve warm.