Preheat the oven to 375F.
Grease the molds thoroughly using melted butter or non-stick spray. I prefer non-stick spray for reliable release from the molds.
Bring butter to room temperature. Make sure it is very soft (not melting) before you begin.
Measure out all your ingredients and have them ready.
Sift the dry ingredients together - AP flour, baking powder, and a tiny pinch of salt.
Crack the eggs into a bowl and whisk them until they are frothy.
Cream the butter and sugar in a large bowl, either with a stand mixer, hand mixer, or by hand, until they are light and fluffy. You are looking for a whipped frosting consistency.
Add the vanilla extract and whip a couple more times until it is incorporated.
Next, add the whisked eggs to the butter and mix gently to incorporate. You want to avoid knocking out all the air from the whisked eggs.
Now add the sifted dry ingredients in three stages to the wet mixture. Gently fold the mixture to incorporate the flour into the batter. Again, take care not to mix very vigorously since that will knock out all the air from your batter.
If the batter is thicker than dropping consistency, add a tbsp of milk at a time and fold gently until the batter is thin enough to be dropped from a spoon.
Working quickly, spoon the batter into the greased molds up to 2/3rd full.
Transfer immediately to the center rack of the oven and bake for 15-18 minutes. The cakes are done when they rise to fill the molds and a toothpick test comes out clean.
Prepare the jam and coconut rolling station while the cakes are baking. See below.
Do not open the oven door to check until the cakes are well risen and beginning to brown on top, or the cold air will deflate the cakes. Patience is key here!
Remove the cakes from the oven and let cool in their tins for 5 minutes.