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Canning Rhubarb Simple Syrup

Rhubarb syrup for canning—made with a quick simmer, strained to a ruby-pink, translucent finish, then processed in pint jars for pantry-ready preserve. This cocktail syrup is bright with lemon and turns pancakes into a jewel-toned drizzle.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 4 pints
Cuisine: American
Calories: 830
Ingredients Equipment Method Notes

Ingredients
  

rhubarb
  • 6 cup fresh rhubarb Chopped
  • 4 cup water
  • 4 cup sugar
  • 1 tbsp lemon juice

Equipment

  • 1 Dutch oven
  • 1 sheet pan

Method
 

Cook and strain the rhubarb
  1. Combine chopped fresh rhubarb and water in a large pot, then bring to a boil. Once boiling, keep it at a steady boil so the rhubarb releases color and aroma.
  2. Reduce heat to maintain a gentle simmer and simmer for 15 minutes until the rhubarb is very soft. You should see the mixture look darker and fruit-transparent rather than firm.
  3. Strain the mixture through cheesecloth or a fine mesh strainer, pressing to extract all liquid (aim for about 4 cups). The strained liquid should look ruby-pink and translucent.
Make the syrup
  1. Return the rhubarb juice to the pot, add sugar and lemon juice, and bring to a boil. Stir until the surface actively bubbles before timing the next step.
  2. Simmer for 5 minutes until the sugar is completely dissolved. The syrup should look clear-to-translucent with a consistent pink tint.
Jar and process for canning
  1. Pour the hot syrup into sterilized pint jars, leaving 1/4-inch headspace. Wipe rims clean so the seals can form evenly.
  2. Process jars in a boiling water bath for 10 minutes. After processing, the liquid should be still and the jars sealed as they cool.
Serve
  1. Use the canned rhubarb simple syrup in cocktails, over pancakes, or mixed with sparkling water. It should drizzle in ruby-pink ribbons and sparkle with light in the jar.

Notes

For best color and yield, press the strained rhubarb firmly but avoid forcing solids through the cloth/mesh. After opening, refrigerate and use within 2-3 weeks; the sealed jars can be stored in a cool, dark pantry per your standard canning safety guidelines. Freezing: yes—freeze in portions if you don’t plan to can. Dietary swap: substitute half the sugar with a 1:1 sugar replacement made for canning syrup, but texture and set may vary.