Preheat oven to 350F.
Add the dry ingredients to a bowl and mix well.
Add the wet ingredients to the bowl with the dry ingredients and mix well.
Pour the batter into a well greased 8x8 pan.
Bake at 350F for 30 minutes (do a toothpick test - make sure it comes out clean).
Allow the cake to cool, then top with lemon curd and candied lemon slices if desired.