Substitution for cake flour: Using all purpose flour (plain in the UK) for each cup of flour in a recipe, remove 2 Tablespoons of flour replace with 2 Tablespoons cornstarch (cornflour in the UK). This recipe has 3 cups of flour so you will measure out 3 cups of all purpose flour, remove 6 Tablespoons and replace with 6 Tablespoons cornstarch, whisk to blend.
This recipe makes 7 cups batter- approximately 28 cupcakes.
Fresh or frozen strawberries can be used.
**Note that if you'd like to add the lemon whipped cream cheese frosting as a filling as well, you would do this step first. Spoon the frosting into a disposable piping bag with the tip snipped away, push halfway down into the cooled cupcake, squeeze piping bag for a couple of seconds to fill, and then add the swirl of frosting on top. (You can squeeze the bag for a couple of seconds on a plate first to get an idea of how much filling you will be adding-- or if you have a cupcake to spare, do a trial run and adjust amount accordingly for the others.)