Make a simple syrup by combining 1 cup sugar with 1 cup of water in a saucepan. Place over medium heat until the sugar in completely dissolved; swirl the pan occasionally. Let cool.
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Step 3:
once the simple syrup has cooled, puree strawberries in a food processor or blender with ½ cup water.
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Step 5:
in a large pitcher, combine ice, strawberry puree, simple syrup and lemon juice. If using the vodka, add it to the pitcher and stir to combine.
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Step 7:
add 4-6 cups of cold water. The amount of water you use will depend on your tastes, so add as little or as much as you want to achieve desired sweet/tart balance.
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Step 9:
rim your glasses with sugar before pouring, then garnish with fresh strawberries or lemon slices.
