- Peel the apples and remove the core of the whole apples with an apple corer. Cut into 1-cm (1/2-inch) thick slices.
- Toss the apples with the rum. Let marinate for 1 hour at room temperature.
- In a bowl, combine 60 ml (1/4 cup) sugar, flour, cinnamon, beer and vanilla. Whisk until it is smooth. Let stand one hour at room temperature.
- Sprinkle the apples with the remaining sugar and coat with the batter. Preheat the oil in the deep fryer to the highest temperature. Fry a few slices of apple at a time until browned. Dust with icing sugar. Serve immediately. Delicious with vanilla ice cream.