Preheat oven to 375°F
In a small bowl mix together all purpose and bread flours with salt and baking soda. Set aside.
In a larger bowl, cream together butter and sugar until color has slightly lightened and smooth and fluffy. About 3 minutes.
Add in egg and beat until combined, and then add in vanilla.
Stir in blueberries and white chocolate with a spatula until mixed throughout batter.
Scoop dough onto a parchment or silicone lined cookie sheet. Cookies can be made into very large cookies using an ice cream scoop or regular sized using a 2 tbsp scoop.
Bake cookies for 12-16 minutes. The size of cookie will change bake time. Smaller cookies baking for about 12 minutes and larger closer to 16. Cookies will be set mostly throughout and started to be golden brown on the edges.
Let cookies sit on cookie sheet for about 2 minutes before moving to cooling rack.
