Preheat the oven to 325°F (165°C). Let 175 g of butter soften at room temperature.
Cream butter and ¾ cup white sugar until light and fluffy. Add eggs one at a time, then mix in vanilla essence and lemon zest.
In a separate bowl, combine flour, baking powder, cinnamon, and salt. Gradually add to the wet mixture, alternating with pineapple syrup, until smooth.
Melt 25 g butter and pour into a buttered cake pan. Sprinkle brown sugar evenly over the melted butter.
Arrange pineapple slices over the sugar and place cherry halves in the centers. Pour cake batter on top, smoothing it out.
Bake for 45 minutes or until a skewer comes out clean. Let cool for 5–10 minutes, then invert onto a plate and serve warm.