Preheat oven to 350°F. In an oven safe pot or pan with lid, bring 4½ cups of reserved chicken broth (or store bought) to a boil over medium high heat.
Add boullion cubes and allow to dissolve. Add 2 tablespoons of olive oil, bijol seasoning and rice. Stir & return to a boil, then cover, and place in oven for 15-20 minutes, or until liquid is fully absorbed and rice is tender.
Remove from oven and allow to cool slightly, about 20 minutes.
In a large (9x13 inch) baking dish, layer half of rice and smooth out evenly over bottom of dish, lightly packing it down. Pour chicken mixture over rice and smooth out in an even layer. Cover with remaining rice and pack down lightly.
Spread ⅓ cup mayonnaise in thin layer over top of rice, smoothing with an offset spatula or back of a spoon.
Garnish with sweet red pimiento in desired pattern. Serve hot.