Strawberry Mango Limonata - cooking recipe

Ingredients

16 ounces frozen strawberries, thawed
16 ounces frozen mangoes, thawed
1/2 - 1 cup sugar, depending on your preference
6 (11 1/4 ounce) cans chilled lemon italian soda (San Pelligrino Limonata)

Preparation

In a large blender, blend the thawed fruit together until smooth.
Stop the blender and add the sugar, a little at a time, tasting every now and then until the fruit is to your desired sweetness. I like mine sweet enough to have as a topping for a dessert, but still tart enough to make a statement.
At this point, you can chill the fruit base for use within the next three days, or freeze into cubes for later use.
To assemble your drink, take a glass and half fill it with your fruit base. If you prefer your drink lemony, use less fruit; fruitier, use more.
Carefully pour the Limonata into the glass, stirring gently until the fruit is dissipated throughout. You won't use a whole can unless your glass is very large.
If you want to make the Limonata a little naughtier, add a shot of vodka.
Gather your friends around and enjoy this great, fruity tart drink!
A possible substitute for Limonata: Limonata is 16% lemon juice from concentrate. I am thinking that by mixing 2 parts lemon juice concentrate (like Tropicana, found in the freezer aisle) with 10 parts sparkling water, you should have a very close substitute.
Another easy substitute: use 7-Up or Sprite. If you do this, cut back on the amount of sugar you use in the fruit base, as these sodas are sweetened already. Add a little splash of lemon juice concentrate or fresh-squeeze lemon juice to each glass to make it tart.