Butter a 20cm cake tin with a little butter.
Heat the oven to 180C/160C fan/gas 4.
Beat together the butter, sugar and vanilla extract until thoroughly combined.
Add the eggs, one at a time, mixing after each addition to combine.
Fold the polenta and ground almonds into the mixture.
Fold through half the strawberries into the mixture.
Add the mixture into the cake tin.
Add the remaining strawberries, dotting them randomly over the top of the mixture.
Bake for around 40 mins, until the cake is firm.