Preheat oven to 350 degrees. Grease and flour a loaf pan, shaking out the excess flour. Set aside.

In a large bowl, stir together 2 cups all-purpose flour + 2 Tbsp flour, brown sugar, granulated sugar, baking soda and salt. Set aside.

In a separate medium bowl, whisk together butter, egg, buttermilk, vegetable oil, vanilla extract, lemon juice, and lemon zest.

Add wet ingredients to the dry ingredients. Stir together until combined.

In a small bowl, toss together raspberries and 2 Tbsp flour together until the berries are coated. Add raspberries and white chocolate chips to the dough, gently folding them in to combined.

Add batter to loaf pan. Bake for 45 minutes, or until cooked through and no dough sticks to a toothpick when inserted in the center.

Cool 15 minutes in the pan before removing and slicing.