First, I made the sweet and sour from scratch using a mixture of regular limes and key limes. You can buy sweet and sour mix, but it's not hard to make from scratch.
Sweet and Sour Cocktail Mix
1/2 cup fresh lemon juice
1/4 cup fresh key lime juice
1/4 cup lime juice
1 cup simple syrup
Simple Syrup
2 cups sugar
2 cups water
Bring to a boil over medium heat. Let boil for 1 minute. Cool and store in fridge.
Tom Collins
1 1/4 ounce sweet and sour
1 1/4 ounce gin
Mix in cocktail shaker filled with ice. Pour into glass with ice, add a splash of club soda and stir lightly.
The hubster reports that I make a really good Tom Collins.
