Magic Custard Cake Recipe

Ingredients

• 4 large Eggs (separated; whites and yolks kept separate)
• 135 g Granulated Sugar (divided: 135 g for batter, extra for whipped cream)
• 113 g Unsalted Butter (room temperature, cut into cubes)
• 2 whole Lemon (zest only, finely grated)
• 10 g Vanilla Extract (pure vanilla, about 2 tsp)
• 125 g All-Purpose Flour (sifted)
• 500 ml Whole Milk (room temperature)
• 240 ml Heavy Cream (chilled, for whipped topping)
• 2 tablespoons Powdered Sugar (for sweetened whipped cream)

Instructions

1. Separate Eggs

   Crack the 4 eggs and carefully separate the whites from the yolks, placing each in separate bowls.

   Time: PT5M

2. Zest Lemons & Measure Ingredients

   Finely zest the two lemons, then set the zest aside. Measure all remaining dry and liquid ingredients.

   Time: PT5M

3. Cream Butter and Sugar

   In a large mixing bowl, beat the softened butter with 135 g sugar until the mixture is light, fluffy, and pale in color.

   Time: PT5M

4. Add Egg Yolks

   Add the 4 egg yolks one at a time to the butter‑sugar mixture, mixing well after each addition.

   Time: PT3M

5. Incorporate Flavorings and Dry Ingredients

   Stir in the lemon zest and vanilla extract, then gently fold in the sifted flour followed by the milk, mixing just until smooth.

   Time: PT5M

6. Whip Egg Whites

   Using the electric mixer on medium‑high speed, whip the egg whites until stiff peaks form.

   Time: PT10M

7. Fold Whites into Batter

   Using a rubber spatula, gently fold the whipped egg whites into the batter in three additions, preserving as much air as possible.

   Time: PT5M

8. Prepare Pan and Preheat Oven

   Preheat the oven to 300 °F (150 °C). Line the 8 × 8 inch pan with parchment paper, allowing the paper to overhang the sides for easy removal.

   Time: PT5M

   Temperature: 150°C

9. Transfer Batter to Pan

   Pour the batter into the prepared pan and smooth the top with the spatula.

   Time: PT2M

10. Bake the Cake

    Bake for 80–90 minutes, or until the top is lightly golden and a toothpick inserted near the center comes out clean.

    Time: PT1H25M

    Temperature: 150°C

11. Cool Completely

    Remove the pan from the oven and let the cake cool on a wire rack until completely room‑temperature.

    Time: PT30M

12. Refrigerate to Set

    Cover the cooled cake with plastic wrap and refrigerate for at least 2 hours to set the custard texture.

    Time: PT2H

13. Whip Sweetened Cream

    In a chilled bowl, combine the heavy cream with 2 tbsp powdered sugar and whip on medium speed until soft peaks form.

    Time: PT5M

14. Serve

    Lift the cake out of the pan using the parchment overhang, slice, and serve each piece topped with a dollop of sweetened whipped cream.

    Time: PT2M

Nutrition Facts

Calories

250

Protein

5 g

Carbohydrates

30 g

Fat

12 g

Fiber

0.5 g

Ingredient Substitutions

• Instead of Eggs: egg replacer (for whites), pasteurized liquid egg whites
• Instead of Granulated Sugar: coconut sugar, powdered sugar
• Instead of Unsalted Butter: margarine, vegetable shortening
• Instead of Lemon: lemon extract (1 tsp), lime zest
• Instead of Vanilla Extract: vanilla paste, almond extract (¼ tsp)
• Instead of All-Purpose Flour: cake flour, gluten‑free flour blend
• Instead of Whole Milk: 2% milk, unsweetened almond milk
• Instead of Heavy Cream: coconut cream, whipping cream alternative
• Instead of Powdered Sugar: granulated sugar (dissolved), honey (½ tsp)

Equipment Needed

• Mixing Bowl
• Electric Mixer
• Whisk
• Spatula
• 8 × 8 inch Baking Pan
• Parchment Paper
• Oven
• Cooling Rack
• Refrigerator
• Measuring Cups and Spoons
• Zester
• Fine Mesh Sieve (optional)

Critical Steps — Do Not Skip

• Separate eggs without contaminating whites with yolk
• Whip egg whites to stiff peaks
• Fold whipped whites gently to retain air
• Bake at low temperature (150 °C) for a long time
• Refrigerate the cake for at least 2 hours to set the custard texture

Chef Tips from the Video

• Room‑temperature butter creams faster and yields a lighter batter.
• Sift the flour to avoid lumps and keep the cake airy.
• Low‑and‑slow baking at 150 °C creates the signature custard‑like crumb.
• Use parchment overhang to lift the cake out without damaging its edges.

Troubleshooting

Storage

Refrigerator: Cover tightly; lasts up to 3 days.

Freezer: Wrap cake layers in plastic and foil; freeze up to 1 month.

Room temperature: Not recommended; custard will soften.

Make-Ahead Tips

• Bake the cake a day ahead and keep it refrigerated; add whipped cream just before serving.
• The whipped cream can be prepared up to 30 minutes in advance and stored in the fridge.

Frequently Asked Questions