Homemade Lemon Soda is super easy to make and has only four ingredients. Easy lemon soda is super refreshing.

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Homemade Lemon Soda
I catered the first day of school for Richard's old masters programme a month or so ago, and needed to make a non alcoholic drink that was cheap and easy, and that people could put together themselves. I wasn't too sure as to what to use, then when I was making this cake for one of our episodes of distant kitchens, I popped a little bit of the orange thyme syrup into my soda water and suddenly realised that it worked perfectly.
(I am in no way trying to claim ownership for inventing simple syrup here!) Half pissed off at myself that I hadn't thought of infused simple syrup and soda earlier and half stoked that I had found a drink I could use for the event, I played around with a couple of combinations and ended up serving a couple - a rosemary syrup, an orange thyme syrup, and this here Lemon and basil combination. They were a giant hit - I served the syrup in pour bottles alongside a big drink container of soda, and guests were able to mix up their own drinks.
Lemon and Basil Soda
There is something about herbs in drinks - I love it! The taste of the herbs gussies up boring soda water, and also offsets the sugar of the simple syrup. The possibility of flavour combinations is literally endless - simple syrup is a 1:1 sugar to water ratio. If you are infusing with a herb then add that, and if you are flavouring with a juice, sub out some of the water for the juice, and there you go!
How to store Lemon Soda
The syrup, due to the high sugar content, keeps really well in the fridge, so is great to have on hand for adding to drinks or cocktails. You only use a tablespoon or so at a time when serving, so a little goes a fairly long way. I am yet to add alcohol, but I honestly can't see that going badly.
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A note on salt and oven temperature
It is important to note the type of salt that is called for in a recipe. I use Diamond Crystal salt throughout my recipes - if you use a different sort of kosher salt or regular table salt you will need to adjust accordingly as some salt is 'saltier' than others. Morton's salt is twice as salty, so you will need half the quantity. Same goes for a regular table salt. I am working to get gram measurements throughout my recipes for salt but still getting there.
All oven temperatures are conventional unless otherwise stated. If you are baking on fan / convection, you will need to adjust the temperature. An oven thermometer is a great investment to ensure that your oven is the correct temperature.
Using the double / triple function in the recipe card
You will notice that there is a '1X' '2X' '3X' button in my recipe card. This can be used for doubling or tripling a recipe. However, please note that this only doubles the ingredient quantities in the ingredients list and NOT in the method. If there are quantities or pan sizes in the method of the recipe (for example weigh out 150g brown butter), you will need to scale this number manually. It will also not change the baking time in the recipe so you will need to adjust this yourself too. It is always a good idea to read through a recipe fully before doubling it just to check this. If you would like to scale this recipe or convert for another pan size, use my calculator!
Tools and equipment
For a list of my go-to tools and equipment, I have a post you can refer to here.
Why is this recipe in grams?
I post my recipes in grams as it is the most accurate way to bake. Cups are not only inaccurate but they vary in volume worldwide. There is no way for me to provide one cup measure that works for everyone. However, posting in weight fixes this issue. If you would like the recipe in cups you are welcome to convert it yourself via google, but please do not ask me to do it for you as I am not comfortable providing a recipe using a method that I have not tested. Baking with a scale is easy, accurate, and also makes cleanup super simple. Here is the scale that I use if you would like a recommendation! Here's to accurate baking!
Recipe for Lemon Soda
PrintLemon Soda
- Prep Time: 15 minutes
- Total Time: 15 minutes
- Yield: Makes about 2 cups of syrup 1x
- Category: Drinks
- Cuisine: American
Description
Homemade Lemon Soda is super easy to make and has only four ingredients. Easy lemon soda is super refreshing.
Ingredients
- 300g sugar
- 1 cup (240ml) water
- ½ cup (120ml) Lemon juice
- approximately 4 cups, loosely packed, basil leaves (stems on is fine), optional
Soda water and ice to serve
Instructions
- Place water, lemon juice and sugar into a small pot over medium heat. Heat until sugar is totally dissolved, then add basil leaves, and leave to infuse as the syrup cools. Cool completely and transfer into a bottle.
- To serve, fill a glass with ice cubes. Add about a tablespoon of lemon basil syrup (you can adjust this to taste), and top up with soda water. Garnish with lemon slices and basil leaves.
- Store syrup in the fridge in a sealed bottle.
Keywords: Lemon Soda, lemon drink, lemon cordial
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