Ultra Soft Custard Loaf Cake 

Ingredients for the Cake Batter

  • 4 large eggs (room temperature)
  • ¾ cup granulated sugar
  • 1 tsp vanilla extract
  • ½ cup vegetable oil or melted butter
  • 1 cup whole milk
  • 1½ cups all-purpose flour
  • 2 tbsp cornstarch
  • 1 tbsp baking powder
  • ¼ tsp salt

Ingredients for the Custard Cream Layer

  • 2 cups whole milk
  • 3 tbsp sugar
  • 2 tbsp cornstarch
  • 2 egg yolks
  • 1 tsp vanilla extract
  • 1 tbsp butter

Ingredients for Topping

  • Powdered sugar for dusting
  • Optional: small pieces of custard or fruit (as seen in the image)

Preparing the Custard Cream

Step 1: Heat the Milk

In a saucepan, heat the milk over medium heat until warm (not boiling).

Step 2: Mix Yolks and Sugar

In a bowl, whisk egg yolks, sugar, and cornstarch until smooth and pale.

Step 3: Combine

Slowly pour warm milk into the egg mixture while whisking continuously.

Step 4: Cook Until Thick

Return the mixture to the saucepan and cook on low heat, stirring constantly, until thick and creamy.

Step 5: Finish the Custard

Remove from heat, add butter and vanilla, mix well, then let cool slightly.

This custard is what creates the creamy pockets seen inside the cake.

Preparing the Cake Batter

Step 1: Whip Eggs and Sugar

In a large bowl, beat eggs and sugar until light, fluffy, and pale.

Step 2: Add Liquids

Add oil (or butter), milk, and vanilla extract. Mix gently.

Step 3: Add Dry Ingredients

Sift flour, cornstarch, baking powder, and salt together.

Fold into the batter until smooth and lump-free.

Assembling the Cake

Step 1: Prepare the Pan

Grease and line a rectangular loaf pan with parchment paper.

Step 2: First Batter Layer

Pour half of the cake batter into the pan and spread evenly.

Step 3: Add Custard

Spoon the custard cream over the batter in small dollops or lines, just like the yellow patches seen on the cake.

Step 4: Final Batter Layer

Gently pour the remaining batter over the custard.

Do not mix—this creates the layered creamy effect.

Baking the Cake

Step 1: Preheat Oven

Preheat your oven to 170°C / 340°F.

Step 2: Bake Slowly

Bake for 45–55 minutes until:

  • Top is golden brown
  • A toothpick inserted comes out slightly moist (not wet)

If the top browns too fast, cover loosely with foil.

Cooling and Finishing

Allow the cake to cool completely in the pan.

Once cooled, remove and dust generously with powdered sugar.

Cooling is essential—this allows the custard to fully set.

Texture and Flavor Description

  • Outside: Lightly crisp and golden
  • Inside: Soft, creamy, custard-like
  • Flavor: Vanilla-rich, lightly sweet, comforting

This cake is not dry—it’s intentionally moist and creamy.

Serving Suggestions

This custard loaf cake pairs perfectly with:

  • Hot tea or coffee
  • Fresh fruit
  • Whipped cream
  • Light fruit syrup

Slice gently using a sharp knife for clean cuts.

Storage Instructions

  • Store in refrigerator up to 4 days
  • Cover tightly to prevent drying
  • Best served slightly chilled or at room temperature

Why This Cake Works

  • Cornstarch adds softness
  • Custard creates creamy layers
  • Low baking temperature prevents dryness
  • Milk-rich batter keeps moisture

Common Mistakes to Avoid

  • Overbaking (will dry the custard)
  • Mixing custard into batter
  • Cutting before fully cooled
  • Baking at high temperature

Flavor Variations

Lemon Custard Cake

Add lemon zest and juice to custard

Orange Vanilla

Use orange zest in batter

Coconut Custard

Replace milk with coconut milk

Chocolate Version

Add cocoa powder to half the batter

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