Preheat oven to 170°c
Whisk eggs lightly with sugar then add milk, cream & vanilla combining all ingredients
Pour through a strainer
Separate hot cross buns, then cut into halves and spread generously with butter
Butter a deep baking dish and arrange hot cross bun pieces inside
Pour half the egg mixture onto hot cross buns, push down gently to absorb the mix. Pour in remaining mixture (pushing down gently again). Allow to stand for 10 minutes to absorb.
Sprinkle with cinnamon sugar
Cook at 170°c for about 30-35 minutes until cooked through, but wobbly in the centre.
Remove from oven & allow to cool slightly before serving.