Bring coconut milk to low boil in medium pot on medium heat. Stir in sugar.
Whisk corn starch and agar powder (or flakes) into ¼ cup (60 ml) water in small bowl. Stir into simmering coconut milk. Return to simmer. Reduce heat to low. Cook 5 min, stirring regularly.
Stir in ground vanilla, cinnamon, nutmeg, cardamom, cloves. Continue to cook, stirring constantly, until thickened, 3–5 min. Remove from heat.
Fill 4 to 6 small bowls with custard mix. Let cool 20 min. Transfer to refrigerator and chill for 6 hours or overnight.
Remove chilled bowls from fridge and loosen around the custard with a knife. Carefully turn bowl upside down on plate and hit it gently on top a few times. Lift bowl to see that custard has been released. If not, poke it a few times with knife.
Drizzle with syrup and garnish with crumbled, roasted cashews and/or chopped fruit and berries.
