1 part sugar
1 part water
Bring the water to a boil. Dissolve the sugar into boiling water, stirring constantly. Once the sugar is dissolved completely, remove the pan from the heat. (Note: Do not allow the syrup to boil for too long or the syrup will be too thick.) Allow to cool completely and thicken, then bottle. Once you’ve made it a few times, you can experiment with the proportions of sugar and water to get it exactly the way you want.
It’s tempting to buy ready made juices. But there’s no arguing that lemon and lime juice is best when freshly squeezed. Thus, an automatic juice press is a good investment. A manual works just as well, but takes a bit more effort to handle. If you want to go pro you might wanna try the “Mexican Elbow”, watch the video to see the smart tool in action.