Preheat the oven to 350 and grease an 8x4 inch bread pan.
In a large mixing bowl, combine flour, baking powder, baking soda and salt. Mix well.
Add the basil, mozzarella and sun-dried tomatoes to the four and mix until all incorporated.
In a separate bowl, whisk together the eggs, oil and buttermilk.
Pour the liquids into the flour mixture. Mix with a wooden spoon until all the ingredients are well combined. (The dough will be sticky.)
Transfer the dough into the bread pan and spread it evenly.
Bake for 40-45 minutes. (See notes to check the bread for doneness.)
Video
Notes
How to tell if bread is cooked through:
There are several tests you can perform to see if the food is done but the temperature is the best indication in most cases. Some easy tests include to touch and gently press the middle of the bread to see how firm it is.
You can use toothpick test to see if the middle of the bread is done. To do the toothpick test: insert the toothpick in the center of the bread, if the toothpick comes out clean, it is cooked through.
Using an instant read digital meat thermometer is the best way to test if the bread is done. Measure at the center of the bread to see if it reached 200° internal temperature.