2 ripe banana
2 handfuls purple seedless Grapes
1 cup ice
1/4 cup milk
1 cup plain yogurt
For better taste, keep the bananas & grapes in a freezer at least 30 minutes before preparation.
Then add the bananas and grapes into a blender
Add yogurt and mix until it is a smooth liquid.
Add the ice and blend until crushed. 
Then add milk, until you receive the desired thickness of drink. 

Serve immediately