Friday Night Cocktails: Blackberry Collins

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• 1 ounce gin
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• 1 ounce Blackberry liqueur
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• 1 ounce lemon juice
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• 1 teaspoon simple syrup
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• Soda water
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Combine the gin, liqueur, lemon juice, and simple syrup in a cocktail shake with ice. Shake and strain into a cocktail glass. Top off with soda water, if necessary.