Preheat the oven to 350°F (175°C) and line a 12-cup muffin tin with liners.
In a bowl, whisk together flour, baking powder, and salt.
In another bowl, beat butter and sugar until light and fluffy.
Add eggs one at a time, then stir in vanilla extract.
Mix in melted white chocolate.
Alternately add flour mixture and milk, beginning and ending with flour mixture.
Fold in chopped strawberries gently.
Divide batter evenly into prepared cupcake liners.
Bake for 18–20 minutes or until a toothpick comes out clean.
Cool completely before frosting or serving.