1.Whisk eggs in medium bowl until combined; stir in cream, extract and sugar. Strain mixture into jug; stand 10 minutes.
2.Pour mixture into six 1-cup (250ml) heatproof dishes. Place dishes in large bamboo steamer; place steamer, covered, over large saucepan of simmering water. Cook 30 minutes or until just set. Remove dishes from steamer; cool slightly.
3.Meanwhile, heat sake, rind and extra sugar in small saucepan; bring to the boil. Reduce heat; simmer, uncovered, 1 minute or until syrupy. Add blueberries; simmer, covered, 2 minutes or until syrup turns purple. Remove pan from heat.
4.Serve custards topped with blueberries.
Wrap the steamer lid in a clean tea towel to avoid condensation drops falling onto the custards. Cook custards in two batches if they don’t all fit in your steamer.
Note
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