Homemade Sour Mix

5 from 67 votes

Keep homemade sour mix on hand to make tons of cocktails, from the margarita to the whiskey sour. Great for parties or cocktail mixing whenever you feel like it!

a margarita made with homemade sour mix

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About this Homemade Sour Mix recipe

If you’ve ever stumbled across a recipe calling for sour mix, sweet-and-sour mix or margarita mix, and then picked some up at the store, then you should know a secret: Homemade sour mix is way more delicious than store-bought sour mix. Why?

Commercial sour mix typically contains other ingredients like artificial flavors and citric acid. Making your own ensures you are using natural ingredients for the freshest flavor. Trust me: This is next-level stuff that will help you step up your home bartending game.

If you’re like me — the type of person who likes to mix up your own cocktails, either for yourself or for a party, — then knowing how to make your own sour mix will save you time, too. Oh, and you’ll also save some money. You can make a lot of sour mix for only a few dollars, whereas you’ll spend a lot on just one bottle of sour mix at the store.

Why you’ll love this recipe

  1. Homemade sour mix is easy to make for use in many cocktail recipes, like the whiskey sour. Bet you can memorize the recipe!
  2. It’s inexpensive to make, too. It will likely only cost you a few dollars to pick up all the ingredients — and less than the store-bought stuff.
  3. It’s versatile and works in many favorite cocktails! It’s wonderful to keep on hand or mix up any time you need it.
a bottle of homemade sour mix with a bowl of citrus fruit

What is sour mix?

Also known as sweet and sour mix, sour mix is a drink mixer used in cocktails. It is essentially simple syrup that has been flavored with sour citrus juices, typically lemon and lime.

It is beloved in bars around the world because it saves time when mixing drinks as it combines the sweetener and the citrus into one ingredient. Saving time matters greatly when you’re behind a bar making a lot of drinks, whether they have a short ingredient list, like a whiskey sour recipe, or a long list of ingredients, such as the Long Island iced tea.

The sugar and citrus are already added, so in many cases all that’s left is a spirit and maybe one or two more ingredients, like bitters or a mixer such as ginger beer.

ingredients for sour mix

Ingredients

You only need four ingredients to make sour mix at home. Start with water or cane sugar or granulated white sugar to make the syrup. This will keep the syrup base clear and colorless.

Filtered water works best for the syrup. At our house, I keep a water filter pitcher * at the ready in our kitchen because it is faster, purer and tastes better than what comes out of our fridge.

Next up is citrus. Sour mix is usually made with all lemon juice or a mix of lemon and lime. If you use all lime juice, you’re essentially making margarita mix instead! If you can take the time to use fresh citrus, you won’t be disappointed.

  • Limes juice: Regular limes are great. Key limes will give off a more tart and aromatic taste. You will need about 8 limes to yield 1 cup of juice.
  • Lemon juice: Use regular lemons for a more traditional flavor or use Meyer lemons for a more floral flavor. You will need about 6 lemons to yield 1 cup of juice.

Fresh is best, but not the only option: Fresh ingredients always go a long way and offers a more natural, zingy lemon taste. However, you can absolutely use concentrate or bottled lemon juice, especially if you are making a big batch of sour mix. The bottled stuff tends to be sourer than fresh juice, but it is totally fine to use if you prefer or need to scale this recipe.

a margarita made with sour mix

Instructions

👇 For full measurements and step-by-step instructions, scroll down to the printable recipe card. It’s all there waiting for you!

Sour mix is incredibly easy to make. To start, make an easy simple syrup, then add it to the fresh juice and let it infuse.

Hand pouring white sugar from a measuring cup into a metal pot on a stove, viewed from above.
Yellow lemon juice is being poured from a glass measuring cup into another liquid in a larger measuring cup, creating the perfect base for refreshing elderflower lemonade.
  1. Combine equal parts of water and sugar on the stove over medium heat. No need to bring this mixture to a boil (or more liquid will evaporate off — which we don’t want). Stir until combined then remove it from heat. Let the mixture cool for about 10 minutes.
  1. Then, stir the juices of the lemons and limes into your simple syrup mixture until combined.

If you need to use it right away, you can stir in a few ice cubes if it’s still warm. Otherwise, decant it into a bottle or mason jar and store it in the fridge. Now you have sour mix to mix into tons of amazing cocktails!

a bottle of sour mix next to a lime cocktail

Variations and substitutions

There are a number of ways to make this recipe all yours.

Play with the ratios

You may prefer your sour mix to be more tart or sweet. Here are a few ways you can mix things up:

  • Make yours with all lemon juice for a slightly sweeter taste.
  • Or, mix it with all lime juice for a more bitter and tart flavor.
  • Add some grapefruit juice for more tartness or orange juice for more sweetness. Try replacing ½ cup of either the lemon or the lime juice, or use ⅔ cup of 3 types of juices.
  • Try other types of citrus, such as key limes, Meyer lemons, blood oranges, pomelos, tangerines or clementines.

Feel free to play around with this recipe until you find your favorite combination. Let me know how it goes in the comments below!

Make margarita mix

Sour mix and margarita mix are virtually the same, but margarita mix typically only uses lime juice whereas sour mix traditionally uses lemon and lime. You can throw either one into your cocktail shaker * and your guests likely won’t tell the difference.

Feel free to make this recipe with 2 parts lime juice, 1 part sugar and 1 part water for more lime flavor to use in your favorite margarita recipes.

My favorite way to make margarita mix is to use agave nectar * instead of simple syrup. Because the agave plant is what’s used to make tequila, these two play off of each other really beautifully.

Add egg whites

For some cocktails, like the whiskey sour, you may wish to add egg whites to give the drink a luscious, foamy layer on top. Store-bought sour mix sometimes has egg whites or another ingredient that helps make it foam up when shaken.

If you’re planning to make lots of cocktails with that signature foamy texture, you can add egg whites straight into to your sour mix if you plan to make a bunch. After the mixture has cooled completely, simply stir in one egg white for every 2 cups of sour mix.

However, adding egg white changes the shelf life; make sure you use it up within 1 or 2 days. Make sure you refrigerate the sour mix when not in use.

decorative icon of an egg.

raw egg warning

Egg whites from pasteurized eggs are safe for cocktails. Egg whites give drinks a silky texture with a foamy layer on top. You can also use liquid egg whites, aquafaba or non-egg foam alternative for cocktails to attain a similar effect.

Caution: Raw eggs can carry a risk of illness.

Substitutes for sour mix

You can use any citrus juice, such as lemon, lime, orange or grapefruit — or a combination — to mix with a sweetener like simple syrup, honey syrup, agave nectar * or even maple syrup. Anything labeled “margarita mix” will also work.

a cocktail made with sour mix with a bowl of citrus

What to make with sour mix

The beauty of sour mix is you can use it to make so many great cocktails!

Sour mix can be used in alcohol-free drinks as well. You can also simply add it to an ice-filled glass and top it with club soda for an easy mocktail or use an all-lemon version as a base for homemade lemonade. Simply add 2 parts water to 1 part sour mix.

More homemade drink essentials

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a margarita made with homemade sour mix

Homemade Sour Mix

Yield: 16 servings
Prep Time: 5 minutes
Cook Time: 5 minutes
Total Time: 10 minutes
Also called sweet & sour mix, making homemade sour mix from scratch is easy! You'll be on your way to making tons of cocktails from home.
5 from 67 votes
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ingredients

instructions

  • Combine sugar and water over medium heat. Stir until combined and remove from heat. Let cool for 10 minutes.
    1 cup water, 1 cup granulated sugar
  • Stir in lemon juice and lime juice until well combined.
    1 cup lime juice, 1 cup lemon juice
  • If using right away, stir in 1-2 ice cubes to reduce the temperature. Otherwise decant into a jar or bottle and store in the fridge for up to 2 weeks.
  • If a frothier sour mix is desired (such as for whiskey sours), you can mix in 2 egg whites to the cooled mixture. Shake well to combine. If adding egg whites, use within 2 days.
    2 whole egg whites

notes

Citrus tips: Use fresh lemon and lime juice for the freshest taste, but the bottled concentrate will work perfectly fine. For fresh lemon juice, you will need about 6 lemons. For fresh lime juice, you will need about 8 limes.
Mix it up: Play with the ratio, or mix and match with other citrus juices like orange or grapefruit. 
Adjust the batch size: This recipe is easily to scale up or down. Use ½ cup measures for a smaller batch, or double it if you are planning a party. Use the +/- buttons at the top of this recipe card to scale the recipe as you need to. 

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nutrition information

Yield: 16 servings

amount per serving:

Serving: 2ounces Calories: 55kcal Carbohydrates: 15g Protein: 0.1g Fat: 0.1g Saturated Fat: 0.01g Polyunsaturated Fat: 0.01g Monounsaturated Fat: 0.002g Sodium: 2mg Potassium: 34mg Fiber: 0.1g Sugar: 13g Vitamin A: 8IU Vitamin C: 10mg Calcium: 4mg Iron: 0.03mg
did you make this recipe?Please leave a comment on the blog or share a photo on Instagram with the hashtag #feastandwestrecipes!

About Susannah

Susannah Brinkley Henry is the founder of Feast + West, a cocktail blog featuring creative, budget-friendly drinks and hosting ideas. A graphic designer with bartending school training, she shares cocktails, mocktails, appetizers and desserts for easy, stylish entertaining. Her work has been featured by Southern Living, Buzzfeed, The Huffington Post and Mashable, and she was a finalist in the Saveur Blog Awards. Susannah is also a publisher on MSN and has appeared on local news segments sharing seasonal drinks. She lives in Charlotte, N.C., where she brings Southern charm and global inspiration to every pour. Read more.

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Comments

  1. Jennifer says

    5 stars
    I was just thinking I haven’t had a good sour in a while and this mix made it so easy! Now I can make sours with all my favorite booze!

  2. Sherry says

    My husband uses the store bought sour mix. When I came across your sour mix recipe, I had to try it. I made a batch of sour mix and he loved your homemade recipe way better than the store bought that he normally buys.

  3. Patrice says

    You’re right! This was easy to make and so much cheaper than buying it premade at the store. Oh, and not to mention yours taste better.

  4. Eileen Kelly says

    I have found my new go-to mix. This was a huge hit for the hubs and I. The addition of the egg whites made this over the top yummy.

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