Preheat oven to 350°F. Grease an 8 x 4 loaf pan or line with parchment paper.
In a medium bowl, combine the flour, cinnamon, baking soda and baking powder.
In another bowl, toss the apples with the 1 tablespoon of flour. This will stop them from sinking to the bottom of the bread.
In a stand mixer with the paddle attachment, mix together the eggs, oil, sugar and vanilla at high speed.
Lower the speed and slowly add the flour mixture to the wet mixture, until just combined. The mixture will be thick.
Gently fold in the apples.
Transfer the mixture to the greased pan. Bake for 45 - 55 minutes, until a toothpick inserted comes out clean. You may need to add foil to the top of the apple bread for the last 15 - 20 minutes so the top does not burn.
Allow pan to cool for 10 minutes before removing to a wire rack to fully cool.