Old Irish Apple Cake is a rustic, comforting dessert filled with tender apples, warm cinnamon, and a buttery crumb topping that feels like a slice of Irish countryside baking. This beloved farmhouse treat is simple, not overly sweet, and perfect for serving with tea, coffee, or a generous drizzle of vanilla custard sauce.
Whether you’re baking for St. Patrick’s Day, fall gatherings, or just a cozy weekend at home, this traditional Irish apple cake delivers homestyle flavor with minimal fuss.
Why You’ll Love This Old Irish Apple Cake

- Simple pantry ingredients you likely already have
- Not overly sweet, making it perfect for breakfast or dessert
- Moist and tender crumb packed with fresh apples
- Buttery oat streusel topping adds texture and flavor
- Perfect for gatherings or afternoon tea
- Even better with custard sauce or whipped cream
This cake highlights the natural flavor of apples instead of masking them with heavy spices or frosting. It’s wholesome, comforting, and beautifully rustic.
Ingredients for Old Irish Apple Cake
For the Cake Batter
- 2 cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon salt
- 1 teaspoon ground cinnamon
- ½ cup unsalted butter, softened
- ¾ cup granulated sugar
- 2 large eggs
- ½ to ¾ cup milk or light cream
- 3 medium tart apples (such as Granny Smith), peeled and thinly sliced
For the Streusel Topping
- ½ cup all-purpose flour
- ¼ cup rolled oats
- ¼ cup granulated sugar
- 4 tablespoons cold butter, cubed
For the Optional Custard Sauce
- 1 cup whole milk
- ½ cup heavy cream
- 3 egg yolks
- ¼ cup sugar
- 1 teaspoon pure vanilla extract
Ingredient Notes (Substitutions & Helpful Tips)
- Apples: Tart apples like Granny Smith hold their shape best. Honeycrisp or Braeburn also work well.
- Milk: Whole milk gives the richest texture, but 2% works fine.
- Butter substitute: Use plant-based butter if needed.
- Lower sugar option: Reduce sugar by 2–3 tablespoons without affecting texture.
- Gluten-free option: Substitute a 1:1 gluten-free flour blend.
- Dairy-free custard: Use full-fat coconut milk and plant-based cream for a creamy alternative.
This recipe contains no alcohol or pork products, making it naturally family-friendly.
Step-by-Step Instructions
Step 1 – Prepare the Pan and Oven
Preheat your oven to 350°F (175°C). Lightly grease and line an 8- or 9-inch round cake pan with parchment paper for easy removal.
Step 2 – Mix the Dry Ingredients
In a medium bowl, whisk together flour, baking powder, salt, and cinnamon. Set aside.
Step 3 – Cream Butter and Sugar
In a large bowl, beat the softened butter and sugar together until light and fluffy. This usually takes 2–3 minutes and helps create a tender crumb.
Step 4 – Add Eggs and Milk
Beat in the eggs one at a time. Add half the dry mixture, then mix in milk, and finish with the remaining dry ingredients. The batter will be thick.
Step 5 – Assemble the Cake
Spread the batter evenly into the prepared pan. Arrange the sliced apples evenly over the top, gently pressing them into the batter.
Step 6 – Make the Streusel Topping
In a small bowl, combine flour, oats, and sugar. Cut in the cold butter using a fork or pastry cutter until crumbly. Sprinkle evenly over the apples.
Step 7 – Bake
Bake for 45–55 minutes, or until golden brown and a toothpick inserted into the center comes out clean.
Let the cake cool slightly before removing from the pan.
Step 8 – Prepare the Custard Sauce (Optional)
Heat milk and cream in a saucepan until steaming but not boiling. In a separate bowl, whisk egg yolks and sugar.
Slowly pour the warm milk mixture into the egg mixture while whisking (this tempers the eggs). Return to the saucepan and cook gently over low heat, stirring constantly, until slightly thickened. Remove from heat and stir in vanilla.
Serve warm over slices of cake.
Pro Tips for Success
- Slice apples evenly so they bake at the same rate.
- Don’t overmix the batter or the cake may become dense.
- Use cold butter for streusel to get a crumbly topping.
- Check at 45 minutes — ovens vary.
- Let the cake rest at least 15 minutes before slicing for clean cuts.
- Dust with powdered sugar just before serving for a beautiful finish.
Flavor Variations
- Add nutmeg or cloves for deeper spice.
- Mix in chopped walnuts or pecans for crunch.
- Add lemon zest for brightness.
- Swap half the apples for pears for a subtle twist.
- Drizzle caramel sauce over the top for extra indulgence.
Serving Suggestions

- Serve warm with vanilla custard sauce
- Add a scoop of vanilla ice cream
- Pair with Irish breakfast tea or coffee
- Enjoy as a brunch centerpiece
- Serve slightly warm for the best flavor and texture
This cake is equally delicious at room temperature, making it ideal for potlucks or holiday tables.
Storage and Freezing Instructions
Room Temperature: Store covered for up to 2 days.
Refrigerator: Keep in an airtight container for up to 5 days. Warm slices slightly before serving.
Freezing: Wrap tightly in plastic wrap and foil. Freeze up to 3 months. Thaw overnight in the refrigerator and warm before serving.
Custard sauce should be stored separately in the refrigerator for up to 3 days.
Nutrition Facts (Per Serving)
| Nutrient | Amount (Approx.) |
|---|---|
| Calories | 320 |
| Protein | 5g |
| Carbohydrates | 45g |
| Fat | 14g |
| Fiber | 3g |
| Sodium | 180mg |
Values are estimates and vary based on ingredients used.
FAQ About Old Irish Apple Cake
What makes Irish apple cake different from American apple cake?
Irish apple cake is typically less sweet and more rustic. It often includes a crumbly streusel topping and is traditionally served with custard rather than frosting. The focus is on fresh apples and simple flavors.
What type of apples work best?
Firm, tart apples like Granny Smith are ideal because they hold their shape while baking. Softer apples may become mushy.
Can I make this cake ahead of time?
Yes. It actually tastes even better the next day as the flavors settle. Store covered at room temperature or refrigerate if keeping longer than two days.
Is custard sauce necessary?
No, but it adds a rich, traditional touch. The cake is delicious on its own or with whipped cream.
Can I bake this in a different pan?
Yes. An 8-inch square pan works well. Baking time may vary slightly, so check for doneness with a toothpick.
Can I reduce the sugar?
Absolutely. This cake is naturally mild in sweetness. Reducing sugar slightly won’t affect the structure.

Old Irish Apple Cake
Equipment
- 8- or 9-inch round cake pan
- mixing bowls
- hand mixer or stand mixer
- whisk
- pastry cutter or fork
- saucepan (for custard)
Ingredients
- 2 cups all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon salt
- 1 teaspoon ground cinnamon
- 1/2 cup unsalted butter, softened
- 3/4 cup granulated sugar
- 2 large eggs
- 3/4 cup milk or light cream
- 3 medium tart apples, peeled and thinly sliced
- 1/2 cup all-purpose flour (streusel)
- 1/4 cup rolled oats
- 1/4 cup granulated sugar (streusel)
- 4 tablespoons cold butter, cubed
- 1 cup whole milk (custard, optional)
- 1/2 cup heavy cream (custard, optional)
- 3 egg yolks (custard, optional)
- 1/4 cup sugar (custard, optional)
- 1 teaspoon pure vanilla extract (custard, optional)
Instructions
- Preheat your oven to 350°F (175°C). Lightly grease and line an 8- or 9-inch round cake pan with parchment paper for easy removal.
- In a medium bowl, whisk together flour, baking powder, salt, and cinnamon. Set aside.
- In a large bowl, beat the softened butter and sugar together until light and fluffy, about 2–3 minutes.
- Beat in the eggs one at a time. Add half the dry mixture, then mix in milk, and finish with the remaining dry ingredients. The batter will be thick.
- Spread the batter evenly into the prepared pan. Arrange the sliced apples evenly over the top, gently pressing them into the batter.
- In a small bowl, combine flour, oats, and sugar. Cut in the cold butter until crumbly. Sprinkle evenly over the apples.
- Bake for 45–55 minutes, or until golden brown and a toothpick inserted into the center comes out clean. Let cool slightly before removing from pan.
- For the optional custard sauce, heat milk and cream until steaming. Whisk egg yolks and sugar separately, then slowly add warm milk mixture while whisking. Return to heat and cook gently until slightly thickened. Remove from heat and stir in vanilla. Serve warm over cake slices.
Notes
Nutrition
Final Thoughts
This Simple Traditional Irish Apple Cake You’ll Love is the kind of recipe that feels timeless. With tender apples, gentle spice, and a buttery oat topping, it captures the spirit of Irish farmhouse baking in every bite. It’s unfussy, comforting, and perfect for sharing.
Bake it once, and it may just become your go-to apple cake for years to come.