Prepare the achiote paste in a small bowl. Combine the paprika, white vinegar, dried oregano garlic and ground cumin. Stir until combined.
Add the additional seasonings to the achiote paste. Stir until well combined. A dark red paste should form.
Add in chicken thighs. Once the chicken thighs have been added, add the juices from the lemon and limes, oil and sprinkle in freshly chopped cilantro.
Lastly, stir all the ingredients to make sure the chicken thighs are thoroughly coated.
Cover and marinate thirty minutes up to twenty-four hours for best results!
After the chicken thighs have marinated, now it is time to grill your pollo asado!
Now, the key to preparing pollo asado is ensuring the heat is fairly high. If using a grill or cast iron, make sure the griddle is smoking hot before adding the chicken.
Once the griddle is hot, sear chicken on both sides for 5-7 minutes depending on thickness.
It is important to note, not disturbing the chicken will result in maximum flavor and a delicious crust will form from the high heat!
The chicken will cook best if it is minimally disturbed. The chicken thighs I used were not thick. It took about 5-6 minutes per side. If your chicken thighs are thicker, increase cooking time.
While the chicken thighs cook through, it is helpful to add extra lemon or lime juice to provide a rich citrus and smoky flavor.
Since the heat is high, smoke will release providing additional flavor.
Laslty, the chicken will be cooked through when it reaches in internal temperature (in the thickest part of the chicken) of 165 degrees.