More often spelled as barquiron, influenced by Spanish. Barkiron is the spelling based on Tagalog orthography.
Barquiron are barkilyos filled with pulburon, then individually wrapped in colorful cellophane.
It is highly likely the name barquiron is a portmanteau of the words barquillos and polvoron.
Barquiron and Barkilyos are delicacies associated with the city of Bacolod, the capital of Negros Occidental province, which is part of the Visayas region of the Philippines. BongBong’s is a popular local brand.
In the nearby Iloilo area, Rewel’s is a known brand, spelling their product’s name as barqueron.