Line a 12-hole muffin tin with paper cases and heat oven to 180C/fan 160C/gas 4. In a large bowl, cream together the butter, sugar and lemon zest until pale and fluffy. Add the polenta and continue to whisk until combined. Beat in the eggs, a little at a time.
Sift in flour and baking powder, then fold in quickly with a large spoon or spatula until you have a thick batter (the mixture may look lumpy because of the polenta). Stir in the milk to loosen, then gently fold in the chopped strawberries
Divide the mixture between the paper cases, then bake for 20 mins or until golden, risen and springy to touch. Cool for a few mins, then place the cakes on a wire rack to cool completely. The cakes can now be stored in an airtight container for up to two days.
The cupcakes were scrummy but didnt go down well with my testers [my son 10yrs and twins 5yrs], I'm guessing due to the texture.
I wonder if you can get polenta in a fine texture or just grind it, hmmm? The recipe turned out quite a few cupcakes so I took the rest to a friend that lives nearby.