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5 from 7 votes

How to Make a Sourdough Starter

This is the easiest method to make a sourdough starter, no measuring or discarding required!
Print Recipe
fermentation time:7 d
Total Time:7 d


  • 1 cup buttermilk
  • 1 dash filtered water
  • 2-3 TBSP flour white or rye flour
  • 1/2 tsp caraway seeds


  • Combine buttermilk, water, flour, and caraway seeds in a glass jar (or in another non-reactive container. 
  • Lightly cover and leave in warm, undisturbed spot.  Check every day for progress.  You can also stir it.
  • Depending on the environment (temperature, moisture, wild yeasts), this can take about 7 days. 
  • Your sourdough starter is ripe when it has a pleasant sour smell and is bubbly and foamy. You can also drop a bit in some water: if it floats, it's ripe, if it sinks, it needs a few more days. 
Course: Breakfast
Cuisine: American
Servings: 1 sourdough starter
Calories: 130kcal
Author: Our Gabled Home
Cost: $4