It's built from two completely different chewy textures at once — tapioca pearls (sago) and cubed seaweed-based jelly (gulaman) — floating together in one glass.
Sago't gulaman mixes small tapioca pearls and cubes of gulaman jelly in a sweet brown-sugar syrup, topped up with cold water and ice. Vendors sell it from pushcarts and roadside coolers across the Philippines, often parked right next to fried street snacks.