Add Olive Oil and Sofrito to pot on medium heat. Let sizzle for 3-5 minutes.
Add Sazon and black pepper to pot. Adding more annatto for a stronger color is optional. If doing so, add at this moment. Mix it all up.
Add in the water and chicken broth. Stir.
Add in pigeon peas. Raise flame from medium to high heat. Let cook for 3-6 minutes (until boiling).
Once boiling, add in rice to same pot. Stir it all up.
Cook for 10-15 minutes uncovered.
Fluff rice into a mound. Most of liquid will be gone at this point.
Lower flame to low heat. Cook 20-25 minutes covered.
Fluff top portion of rice. Serve.