grapefruit juice: in 3 steps

ingredients:

 

• 1 kg of grapefruit. 
• 50 grams of sugar.

 

Preparation:

 

1. grapefruit peel, cut into slices well cleaned their skin. 
2. mix with sugar or more to taste. 
3. filter and chill before serving.

Preparation time: 10 min.