Preheat oven to 375 degrees. Butter and flour a 9x5 inch loaf pan.

In a small bowl, toss blueberries with 1 tablespoon flour. In a large bowl, combine 2 cups flour, sugar, baking powder and salt.

In another bowl, whisk together yogurt, eggs, oil and vanilla. Fold into dry ingredients. Gently stir in oats, followed by the blueberries. Batter with be thick and sticky.

Spread mixture into prepared pan. Bake for 50-55 minutes until golden brown and a toothpick inserted comes out clean. Remove to a wire rack to cool for 10 minutes before turning onto a wire rack to cool completely.