Hi Jules, we're not sure if you've received a starter from King Arthur Flour or from a friend. If you've received it from us, it's important to follow the instructions that come in the booklet, which will allow you to increase the volume of starter to about 2 cups. If you've received a portion of discard from a friend, you can add 4 ounces of flour and 4 ounces of water to 2 ounces of starter and let it rest for a few hours until it's bubbly. Feed it regularly for about 2-3 days using the method described in this blog (discarding all but 4 ounces and then feeding it with 4 ounces of flour and water). Once it's healthy and growing in size after each feeding, you can keep it in the fridge for about a week between feedings. You'll need about 8 ounces of starter for the Sourdough Waffles or Pancakes recipe. Be sure to re-feed your remaining starter after you take what you need for this recipe. We hope that helps, and happy baking! Kye@KAF

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