Mango Sago

Bahan-bahan (4 porsi)

• 1/2 cup small-sized uncooked tapioca ((about 60g))
• 3 ripe mangos ((about 1 kg))
• 200 ml unsweetened coconut milk ((1/2 of a 13.5 oz. can))
• 60 ml sweetened condensed milk ((1/4 cup, or more to taste if you like it sweeter))
• 1/2 teaspoon ekstrak vanila