Cook the blueberries: In a microwave safe bowl, microwave the blueberries for 2 minutes, stirring every 30 seconds to ensure they don’t overflow. Set aside and let the blueberries cool completely.
190 grams blueberries
Bloom the yeast: Whisk the yeast, water and honey together. Cover and let the yeast activate for 15 minutes until foamy and bubbly.
7 grams active-dry yeast, 28 grams honey, 300 grams water
Make the dough: In the bowl of your stand mixer, combine the remaining ingredients with the cooled blueberry mixture and yeast mixture.
113 grams sourdough discard, 750 grams bread flour, 12 grams kosher salt
Using a dough hook, mix the dough on low speed until cohesive and elastic, about 5 minutes. Pause and scrape the sides down as needed. (See notes for hand-mixing instructions).
Gather the dough into a tight ball and cover the bowl with plastic wrap. Let the dough rest for 15 minutes.
Knead the dough: Turn the dough out onto a clean work surface. Knead the dough until smooth, about 5 to 10 minutes.
Pre shape the dough: Divide the dough into 12 portions (about 110 grams each). Keep the dough covered in plastic wrap to prevent it from drying out.
Working with one piece at a time, fold the edges toward the center and pinch to seal. Place seam-side down on your work surface and gently round to close the seam. Set aside and repeat with the remaining pieces of dough.
Prep: Line a large baking sheet with parchment paper. Preheat the oven to 425 F. Bring a large pot of water to a boil.
Shape the dough: Working with the first piece of dough you pre shaped, use your finger to poke a hole through the center. Gently expand the hole to about 2 to 3 inches in diameter. Make the hole slightly larger than you think it should be because it will close slightly as your bagels bake.
Set the shaped portion on the lined baking sheet and repeat with the remaining portions of dough.
Boil the bagels: Add baking soda to the boiling water. Add bagels to the water 2 or 3 at a time (depending on the size of your pot). Boil the bagels for 1 minute. Using a spider or a slotted spoon to flip the bagels halfway through. Transfer the boiled bagels to a wire rack. Repeat with the remaining bagels.
10 grams baking soda
Bake the bagels: Dust the parchment paper with cornmeal. Arrange the bagels on the baking sheet about an inch apart. They can be quite close together since they won’t puff up too much as they bake.
30 grams cornmeal
Bake the bagels for 25 to 30 minutes or until browned and the bagels register at least 200 F when probed with an instant-read thermometer.
Transfer the bagels to a wire rack to cool for at least 15 minutes before serving.
Long-term storage: Slice the bagels and store in a ziplock bag. Store the bagels in the freezer for up to 1 month. Reheat in a toaster or toaster oven until lightly browned and heated through.