In a medium bowl, sift together the cake flour, baking soda and salt. Set aside.
In a large bowl, cream butter and sugar with an electric mixer.
Add eggs. Mix until smooth and creamy.
Add balsamic vinegar, milk, oil, and extract. Mix until combined.
Add flour mixture to butter mixture. Mix until just combined.
Stir in strawberries.
Fill cupcake liners halfway full. Do not fill more than halfway! These cupcakes do not dome. If you fill them too high, they will rise and then sink and look ugly!