Stir the sugar water often to keep the sugar from scorching. This will make your simple syrup. You are boiling the water and sugar, because sugar does not mix well into cold water. If you already have your lemonade, click here to learn how to put the drink together. This will take about 4 to 5 lemons. Rinse the lemons well, then cut them in half. Squeeze them using a lemon juicer, and discard the pulp and seeds. Make sure that the pitcher is large enough to hold 6 cups (1.4 liters) of liquid. Give the water a gentle stir to help mix in the lemon juice. How much you use is up to you. Some people like their lemonade very sweet, while others prefer something more tart. You likely won't use all of the sugar-water. If you have any of the sugar-water left over, store it in the fridge, and use it to sweeten your drinks and desserts within a few days. The sugar-water will likely still be very hot and will make your lemonade warm. You will need to wait for the lemonade to reach room temperature before you move on. If you are in a hurry, add 2 to 3 handfuls of ice into the pitcher.
Boil 1 cup (225 grams) of sugar and 1 cup (240 milliliters) of water in a small pot. Squeeze the juice from enough lemons to fill 1 cup (240 milliliters). Pour the lemon juice into a large pitcher. Add 4 cups (950 milliliters) of cold water. Stir in enough of the sugar-water until you get your desired sweetness. Let the lemonade reach room temperature.