01 -
Toss the blueberries with 1 tablespoon of flour in a small bowl until evenly coated to prevent sinking. Set aside.
02 -
In a large mixing bowl, whisk together 2 3/4 cups flour, baking powder, baking soda, and salt. Set aside.
03 -
In another large mixing bowl, beat the butter and granulated sugar for 4-5 minutes until light and fluffy.
04 -
Add eggs one at a time, mixing well after each addition. Stir in vanilla extract and then the vegetable oil until combined.
05 -
Gradually add the dry ingredients to the wet mixture, alternating with sour cream in small amounts, mixing until just combined.
06 -
Gently fold the flour-coated blueberries into the batter using a spatula to avoid breaking them.
07 -
Spray a 10-inch bundt pan generously with nonstick cooking spray. Pour the batter into the pan and spread evenly.
08 -
Bake in a preheated oven at 350°F for 50-65 minutes, or until a toothpick inserted into the center comes out clean. Cover with foil during the last 5-10 minutes if browning too much.
09 -
Remove from the oven and let cool in the pan for 10-15 minutes. Flip onto a cooling rack and let cool completely before transferring to a serving platter.
10 -
In a separate bowl, mix powdered sugar and milk to desired consistency. Drizzle over cooled bundt cake.