Preheat the oven to 350F and line a baking tray with a silicone mat or parchment. Set aside.
In a large bowl, combine ½ the flour, sugar, blueberry powder, salt, lemon zest and blended silken tofu until a soft, wet dough forms.
Gently, fold in the dried blueberries, and add the remaining flour. Mix until a firmer dough forms.
Lightly sprinkle a clean surface with flour and knead the dough. Divide the dough into 4 equal-sized pieces.
One at a time, roll the dough with your hands into thin little ropes and connect the ends to create a circle. Transfer bagels to the prepared baking sheet and lightly brush the tops of each bagel with butter.
Bake the bagels for 20-22 minutes, or until golden brown.
Transfer bagels to a cooling rack to cool completely.
Serve with your favourite non-dairy cream cheese, butter, or vegan ricotta and agave.