1 cup milk
1 cup water
1 cup white sugar
1 (6 ounce) can frozen orange juice concentrate
1 teaspoon vanilla extract
7 ice cubes
2 cups vanilla ice cream, or to taste (optional)
1/4 cup whipped cream, or to taste (optional)
Combine milk, water, sugar, orange juice concentrate, and vanilla extract in a blender. Cover with ice cubes and blend orange mixture on Low, gradually increasing to High, until smooth.
Cover the bottom of a mug with vanilla ice cream. Pour in orange mixture; top with remaining ice cream and whipped cream.