When I was a teenager, I encountered deep fried, battered hard boiled eggs for the first time. Mom and I were on our way home one afternoon and I smelled something delicious being fried at a street vendor’s cart. There was a mound of orange bunlike things and he was heating up a couple for another customer. The odd orange tinted things were tokneneng.
Since I was curious, and they would make a fine afternoon merienda, Mom bought some, and selected the seasoned vinegar. We brought them home, eggs soaking in vinegar in plastic bags. After pouring them out into bowls we broke into the eggs with our spoons and swirled the hard yolks into the vinegar before taking a bite.