Hi, Jackie. If you'd like to use frozen blueberries instead of fresh, you can simply make a 1:1 swap. Use 2 cups (283g) of frozen (or fresh) berries in this recipe and add them to the batter once it's fully mixed; no changes need to be made. We offer the suggestion to check out our blog article, The secret to baking with frozen blueberries, to reveal a test kitchen tip about how to prevent frozen berries from staining your batter. Check it out for details. Happy baking!

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