The tradition of broiling / grilling eggplant by means of baga is known to me since I was a child. I believe its the only way to do it before I met her.
Baga is the tagalog term for ember or smolder which means hot fragment of wood or coal that is left from a fire and is glowing. Or, burning with thick smoke but no flame, a glowing coal.
When I was still courting her: I travel weekly form Cavite to Quezon City, a three hours trip especially during rush hours. She always cooks a meal for me using the one and only source of flame in their boarding house, the wonder gasul (LPG gas).
One day, she told me that she gonna make a broiled eggplant (inihaw na talong). Then I asked her how, they only have the LPG gas there. I was a bit surprised when I saw here directly grilling the eggplant over the gasul flame.
I was afraid that my favorite eggplant might absorb gasul odor but I was wrong. The menu taste great like the one broiled over a smolder.