Preheat oven to 350 F. Line a baking sheet with parchment paper and set aside.
In a medium bowl, combine the yogurt, flour, sugar, and vanilla until a soft dough forms.
Gently fold in blueberries.
On a lightly floured surface, divide dough into 6 equal pieces. Roll each piece into an 8-inch rope; then pinch the ends together to form a circle. Arrange on prepared baking sheet.
Gently brush each bagel with egg white. Bake for 20-25 minutes or until golden brown.
Allow to rest 5-10 minutes before serving.
Notes
You can substitute 1 1/3 cups all-purpose flour, 1 ½ teaspoons baking powder, and ½ teaspoon salt in place of the self-rising flour in this recipe.