Whipped cream, milk, eggs, egg yolk, 75 g sugar and egg liqueur. Preheat the oven (electric cooker: 125 °C/circulating air: 100 °C/gas: see manufacturer) and place six flat ovenproof tins (approx. 12 cm Ø; approx. 150 ml content) in a fat pan (deep baking tray).
Pour the advocaat cream into the moulds.
Push the fat pan into the hot oven. Pour so much hot water into the fat pan that the moulds for approx. 2⁄3 are in the water. Allow to set for 50-60 minutes. Remove the ramekins from the fat pan, let them cool down and let them rest for at least 50-60 minutes.
Five hours, preferably overnight, chill.
Sprinkle each crème brûlée evenly with 1 tablespoon of sugar. Caramelize with a kitchen gas burner until golden brown. If you would like a thicker layer of caramel, repeat the process with 1 tbsp. sugar each time.