Preheat your oven to 350℉/177℃.

Prep the apples: Peel, core, and slice up all three apples then add them to a medium-sized mixing bowl. Add the sugar along with the spices, and use a spoon to stir everything together. Set this aside until later.

Combine the “dry” ingredients: Add all of the dry ingredients to a medium sized mixing bowl then use a whisk to combine them all together.

Combine the “wet” ingredients: Use either a stand mixer, or a large bowl and hand mixer to cream the butter and sugar together for 2 minutes. Then add the egg, milk, and vanilla extract and beat everything together until thoroughly combined.

Make the batter: Add the “dry” ingredients to the “wet” ingredients and gently fold them together with a spatula until they just start to form a batter. You don’t want to over-mix it. Then divide the batter into two equal sized portions and set them aside.

Assemble the cake: Grease a 9 inch springform pan and add 1 half of the batter to it. Grease your hands with a little oil so that the batter doesn’t stick and press the batter into the bottom of the pan. Next, add the apple/sugar/spice mixture we prepare before and spread it out into an even layer. Then pinch pieces of the rest of the batter on top and use your hands once again to press it into the layer of apples. Don’t worry if all of the apples aren’t covered by the batter just make sure that most are covered. Finally, brush the top with the egg wash and sprinkle on some turbinado sugar.

Place the cake in your heated oven and let it bake for 35 to 45 minutes depending on how hot your oven runs. You will know that the cake is finished when the top is nicely browned and a toothpick inserted into the middle comes out clean.

Let it rest: Take the finished cake out of your oven and let it cool off in the springform pan for roughly 20 minutes.

Slice up the Irish apple cake and enjoy!