Preheat your oven to 350 degrees. Using a large mixing bowl, sift together the cake flour, baking powder, baking soda and salt. Add in the lemon zest, mix a little and set aside.
In the bowl of an electric stand mixer fitted with the paddle attachment, beat together the butter and granulated sugar until pale and fluffy (occasionally stopping and scraping down the bowl as needed).
Add in the eggs, one at a time, mixing well after each addition. Add in the yogurt, vanilla and lemon juice and mix together again. With the mixer running on a low setting, slowly add in the flour mixture, a little at a time until all incorporated. Add the red food coloring (if using) and mix together until well blended. Using a rubber spatula, fold in the diced strawberries.
Divide the cupcake batter among 12 paper lined muffin cups, filling each 3/4 full. Bake for about 20 to 25 minutes, or until a tester inserted into the center of cupcake comes out clean. Allow to cool in your muffin tin for at least 10 minutes before transferring to a wire rack. Let cool completely before topping with the fresh whipped cream.