You can also add some shrimp, crabmeat, shredded carrots or chopped green onions to the pork mixture. If you would like to add some color to the top of your egg meat loaf then do the following. You will need to make some annatto seed oil. Turn the heat to medium-high and add the oil to the pan. Once the pan is hot add the annatto seeds. Stir until the seeds have bled most of their color. It should take about 2-3 minutes. Discard the seeds and reserve the oil. Let the annatto seed oil cool then add it to the 4 beaten egg yolks. Stir.