Use short-grain varieties like Bomba rice or Calasparra, which absorb stock without becoming mushy.

Simmer uncovered for 15–20 minutes. When the liquid is mostly absorbed, nestle the mussels, clams, and reserved shrimp back into the rice.

Pour in the hot seafood stock mixed with saffron. Spread the rice in an even layer and do not stir it again to allow the socarrat to form.

Stir in the rice and smoked Spanish paprika, ensuring every grain is coated in the oil and sofrito for about 1 minute.

In the same oil, sauté diced onions and bell peppers until softened. Add minced garlic and grated or diced tomatoes, cooking until the liquid evaporates and the mixture thickens into a rich "sofrito".

Authentic flavor and golden color come from high-quality saffron threads steeped in warm water or stock.