Preheat oven to 350 F. Prepare muffin baking sheet with 12 liners.
In a large bowl combine: flour, baking powder and salt.
2 cups all-purpose flour, 1 Tbsp. baking powder, 1/8 tsp. salt
In a large bowl whisk in: granulated sugar, buttermilk, butter, eggs and vanilla extract.
3/4 cup granulated sugar, 3/4 cup buttermilk, 1/2 cup unsalted butter, 2 eggs, 1/2 tsp. vanilla extract
Add dry ingredients to wet, mix with spatula or spoon.
Add raspberries and white chocolate chips, mix with a spoon.
1 1/4 cup raspberries, 1 cup white chocolate chips
Fill liners all to the top with the batter.
Bake for 20-25 minutes until inserted toothpick will come out clean.
Remove muffins from the pan to a rack to cool.