Heat palm oil in a frying pan and fry the onions until golden brown. Add hard-boiled eggs and saute the mixture for 1 minute. Next add the chiles and manioc flour, stirring constantly until the mixture turns golden. Substitute piquin if malagueta chiles are unavailable. Note: if palm oil is unavailable, or a healthier alternative is desired, substitute vegetable oil with 3 teaspoons of paprika added.