1. Prepare the Dough

1. In a large mixing bowl, combine flour, yeast, salt, and sugar.
2. Add warm water and oil, then mix until a rough dough forms.
3. Knead the dough for 8-10 minutes, until smooth and elastic.
4. Gently fold in blueberries, ensuring they are evenly distributed.

2. First Rise

1. Place the dough in a greased bowl, cover with a towel, and let it rise for 60-90 minutes, until doubled in size.

3. Shape the Bagels

1. Punch down the dough and divide it into 8 equal portions.
2. Roll each portion into a ball, then poke a hole in the center and stretch it into a bagel shape.

4. Boil the Bagels

1. Bring 6 cups of water to a gentle boil, then add honey or brown sugar.
2. Drop 2-3 bagels at a time into the boiling water and boil for 30 seconds per side.
3. Remove with a slotted spoon and place on a parchment-lined baking sheet.

5. Bake the Bagels

1. Preheat the oven to 400°F (200°C).
2. Brush each bagel with egg wash and sprinkle with coarse sugar (if using).
3. Bake for 18-22 minutes, until golden brown and fluffy.
4. Cool on a wire rack before serving.