Traditional Irish Apple Cake

Irish Apple Cake is a comforting, traditional-style dessert that brings together tender apples, warm cinnamon, buttery cake, and a crisp, golden crumble topping.

Made from simple ingredients, this homemade treat offers a delightful combination of textures and flavors in every slice.

The soft cake forms a delicious base, while thinly sliced Granny Smith apples add a gentle tartness that balances the sweetness of the batter and streusel.

The cake features a buttery crumb flavored with vanilla and cinnamon, creating a warm, inviting aroma as it bakes.

A layer of fresh apple slices rests on top of the thick cake batter, followed by a generous crumble made from flour, rolled oats, butter, sugar, and a pinch of salt.

As the cake bakes, the topping develops a lightly crisp, crumbly texture that contrasts beautifully with the tender fruit and soft interior.

What makes this Irish Apple Cake especially appealing is the traditional custard sauce served alongside it.

Prepared from egg yolks, whole milk, sugar, and vanilla, the sauce is smooth, creamy, and rich, adding a luxurious finishing touch to each slice.

Drizzled over the cake just before serving, it complements the tart apples and cinnamon notes without overpowering their flavor.

Despite its impressive presentation, this recipe is straightforward enough for home bakers to prepare from scratch.

The cake is suitable for a relaxed weekend breakfast, an afternoon coffee break, or a comforting dessert after dinner. S

erve it slightly cool or at room temperature with freshly prepared custard for a delicious homemade treat that celebrates the simple pleasures of apples, buttery crumble, and classic baking.

Lawrence D. Smith

Traditional Irish Apple Cake

This traditional Irish Apple Cake features a tender cinnamon-scented cake topped with thinly sliced Granny Smith apples and a buttery oat crumble.

Served with a smooth homemade vanilla custard sauce, it makes a comforting treat for breakfast, afternoon tea, or dessert.

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Prep Time 10 minutes mins

Cook Time 1 hour hr 10 minutes mins

Cooling Time 1 hour hr

Total Time 2 hours hrs 20 minutes mins

Servings: 10 Slices

Course: Breakfast, Dessert

Cuisine: Irish

Ingredients Equipment Method Notes

Ingredients

  

Crumble Topping

• – 6 tablespoons 85 g cold unsalted butter, cut into cubes
• – ¾ cup 94 g all-purpose flour
• – ¼ cup 20 g old-fashioned rolled oats
• – ½ cup 100 g granulated sugar
• – Pinch of salt

Apple Cake

• – 1¼ cups 156 g all-purpose flour
• – 1 teaspoon 4 g baking powder
• – 1 teaspoon 3 g ground cinnamon
• – ¼ teaspoon 1 g salt
• – ½ cup 113 g or 1 stick unsalted butter, at room temperature
• – ½ cup 100 g granulated sugar
• – 2 large eggs at room temperature
• – 1 tablespoon 15 ml pure vanilla extract
• – 3 tablespoons 45 ml milk, at room temperature
• – 3 Granny Smith apples peeled and thinly sliced

Custard Sauce

• – 6 large egg yolks at room temperature
• – 6 tablespoons 75 g granulated sugar
• – 1½ cups 360 ml whole milk
• – 1½ teaspoons 8 ml pure vanilla extract

Equipment

• Kitchen scale
• 9-inch springform pan
• Parchment paper
• Nonstick cooking spray
• Stand mixer or hand mixer
• Large mixing bowls
• Medium mixing bowl
• Medium saucepan
• Whisk
• Pastry cutter or two forks
• Spatula
• Knife and cutting board
• Measuring cups and spoons
• Sauce boat or serving bowl

Method

 

1. Prepare the Baking Pan: Preheat the oven to 350°F (175°C). Line the bottom of a 9-inch springform pan with a round piece of parchment paper, then coat the pan with nonstick cooking spray. Set aside.
2. Make the Crumble Topping: In a mixing bowl, whisk together the flour, rolled oats, granulated sugar, and salt. Add the cold, cubed butter and work it into the dry ingredients using a pastry cutter or two forks until the mixture resembles coarse sand.

   Place the crumble mixture in the refrigerator while preparing the cake batter.
3. Combine the Dry Cake Ingredients: In a large bowl, whisk together the flour, baking powder, ground cinnamon, and salt until evenly combined. Set aside.
4. Cream the Butter and Sugar: In a separate large bowl, beat the room-temperature butter and granulated sugar with a stand mixer or hand mixer for about 1 minute, until the mixture looks creamy.
5. Add the Eggs and Flavorings: Beat in the eggs one at a time, mixing after each addition. Add the vanilla extract and room-temperature milk, then mix until incorporated.

   Scrape down the sides and bottom of the bowl as needed to ensure the ingredients are evenly combined.
6. Finish the Cake Batter: Add the prepared dry ingredients to the butter mixture. Mix just until the flour disappears and the ingredients are combined. The batter will be thick, which is expected.
7. Assemble the Cake: Transfer the thick batter to the prepared springform pan and spread it into an even layer. Arrange the peeled, thinly sliced Granny Smith apples over the batter in a single layer.

   Remove the crumble topping from the refrigerator and distribute it evenly over the apples.
8. Bake the Cake: Place the pan in the preheated 350°F (175°C) oven and bake for 55–60 minutes, until the cake is baked through and the crumble topping is golden.
9. Cool and Release the Cake: Allow the cake to cool in the pan for approximately 15 minutes. Carefully run a knife around the inside edge to loosen it, then remove the sides of the springform pan. Let the cake cool completely before serving.
10. Whisk the Custard Ingredients: In a medium bowl, whisk together the egg yolks, granulated sugar, and vanilla extract for about 2 minutes, until the mixture becomes pale. Set aside.
11. Heat the Milk: Pour the whole milk into a medium saucepan and heat over medium heat until scalding hot. Look for small bubbles beginning to form around the edges of the pan, indicating that the milk is just starting to simmer.
12. Temper the Egg Yolks: Slowly pour approximately ½ cup of the hot milk into the egg yolk mixture while whisking constantly. This gradually warms the yolks.

    Pour the tempered egg mixture back into the saucepan with the remaining hot milk, continuing to whisk as you combine everything.
13. Cook the Custard Sauce: Cook the mixture over medium heat for about 4 minutes, stirring constantly to prevent the custard from scorching. It is ready when it thickens enough to coat the back of a spoon.
14. Transfer the Custard: Remove the thickened custard from the heat and transfer it to a sauce boat or serving bowl.
15. Slice and Serve: Cut the completely cooled apple cake into 10 slices. Serve each slice with a drizzle of the warm or cooled vanilla custard sauce, as preferred.

Notes

• Choose the right apples: Granny Smith apples are ideal because they retain their texture during baking and provide a tart flavor that balances the sweet cake and crumble. Braeburn and Honeycrisp apples are also suitable alternatives.
• Keep the butter cold for the crumble: Cold butter helps the topping maintain its crumbly texture instead of melting too quickly into the cake.
• Use room-temperature ingredients: The butter, eggs, and milk for the cake batter should be at room temperature to help the ingredients combine smoothly.
• Avoid overmixing: Once the dry ingredients are added, mix only until combined. This helps keep the cake tender.
• Watch the custard carefully: Stir constantly while cooking the custard over medium heat to prevent it from sticking to the bottom of the saucepan or scorching.
• Allow the cake to cool: Let the cake rest in the pan for 15 minutes before removing the springform sides, then cool completely for easier slicing.
• Storage: Keep the covered cake at room temperature for up to 2 days or refrigerate it for up to 5 days.
• Freezing: Once completely cooled, wrap the cake in plastic wrap and place it in an airtight container or freezer bag. Freeze for up to 2 months. Thaw in the refrigerator, then bring to room temperature before serving.

Chef’s Secret

The secret to a beautifully textured Irish Apple Cake is managing the moisture from the apples while keeping the crumble crisp.

Granny Smith apples are particularly useful because their firm flesh holds up well during baking.

Slice them thinly and arrange them in a single, even layer so they cook consistently without creating overly thick pockets of fruit.

For the topping, make sure the butter is thoroughly chilled before cutting it into the flour, oats, and sugar.

The mixture should resemble coarse sand rather than a smooth paste.

Refrigerating the prepared crumble while you make the batter helps keep the butter firm until baking begins.

Finally, allow the cake to cool completely before slicing, giving the tender crumb time to settle and making each serving easier to lift neatly from the pan.

Serving Suggestions

Serve Irish Apple Cake with a generous drizzle of homemade vanilla custard for the traditional finishing touch.

The smooth, creamy sauce complements the tart apples, warm cinnamon, and crisp oat crumble beautifully.

For an extra indulgent dessert, add a spoonful of lightly whipped cream or a small scoop of vanilla ice cream alongside each slice.

A light dusting of ground cinnamon can enhance the cake’s warm aroma, while a few thin apple slices make a simple garnish.

For breakfast or afternoon tea, pair a slice with freshly brewed coffee or black tea.

You can also serve the cake slightly warmed with the custard poured over just before eating, creating a comforting dessert that is especially enjoyable on cool days.

Conclusion

Irish Apple Cake is a delightful homemade bake that combines tender cinnamon-flavored cake, tart apple slices, and a golden, buttery crumble topping.

Its creamy vanilla custard sauce adds a traditional finishing touch, making every slice feel comforting and satisfying.

With straightforward preparation and familiar ingredients, this recipe is suitable for both everyday baking and special gatherings.

Serve it for breakfast, afternoon tea, or dessert whenever you want a classic apple treat that brings warmth and sweetness to the table.