Easy Custard Cake Filling

  4.7 – 38 reviews  • Cream Fillings

Use your favorite layer cake or cupcakes with this custard filling recipe. It’s foolproof thanks to the microwave! To change up the flavor, try using different extracts like almond and mint.

Prep Time: 5 mins
Cook Time: 10 mins
Additional Time: 30 mins
Total Time: 45 mins
Servings: 8
Yield: 2 cups approximately

Ingredients

  1. 2 cups milk
  2. ¾ cup white sugar
  3. 5 tablespoons all-purpose flour
  4. ¼ teaspoon salt
  5. 2 large eggs
  6. 1 teaspoon vanilla extract

Instructions

  1. Pour milk into a microwave-safe glass or ceramic bowl. Cook in the microwave on high until hot but not boiling, 2 to 4 minutes.
  2. Combine sugar, flour, and salt in a second microwave-safe glass or ceramic bowl. Whisk in hot milk gradually until incorporated. Cook in the microwave on high in 1-minute intervals, stirring after each interval, until thickened, 4 to 5 minutes.
  3. Whisk eggs in a medium bowl until pale and frothy. Whisk 1/3 cup milk mixture into eggs gradually, then whisk egg mixture into remaining milk mixture until smooth. Cook in the microwave on high until custard is thickened, about 2 minutes. Allow to cool slightly.
  4. Stir vanilla into custard until incorporated. Cool completely in the refrigerator before using, about 30 minutes.

Nutrition Facts

Calories 140 kcal
Carbohydrate 26 g
Cholesterol 51 mg
Dietary Fiber 0 g
Protein 4 g
Saturated Fat 1 g
Sodium 115 mg
Sugars 22 g
Fat 3 g
Unsaturated Fat 0 g

Reviews

Rick Glass
I followed the instructions and it was perfect!!! I even doubled the recipe too. So easy and I didn’t have to be over the stove.
Christopher Martin
This is crazy good! I did cut sugar back to 1/2 cup just because I don’t like my custard too sweet. And used 4 Tbsp cornstarch. Will definitely make again. Thanks for sharing!
Derrick Jenkins
A good easy recipe. I use the microwave method. Increments of 1 minute for 5 min is better. If only 4 minutes the custard remains a bit soft.
Candace Williamson
Very simple to make. Can be lumpy if you don’t add flour very slowly!
Emily Campbell
I too, substituted cornstarch for flour, cooked on the stove and doubled the recipe for 2 coconut cream pies. I was in a hurry and it didn’t take long. I’m happy and sets up great!
Nathan Murray
Did this on stovetop as someone suggested. Reduced sugar to 1/2 cup and the sweetness is just right. Used 3T cornstarch instead of flour. Easy to make.
Adam Dalton
I was very skeptical about this working in a microwave no less and I am blown away but how perfect this turned out! I made a half portion since I was filling a small cake and I subbed the flour for 1.5 tbsp of cornstarch and OMG. This was perfect and delicious. I reduced the sugar as well, since I didn’t want it too sweet. Huge hit in my strawberry shortcake and I will use the recipe again for fruit custard. Just watch the microwave instead of relying on the instructions, as the timing may be different based on what dish you use, volume and power of microwave.
Brett Moore
This was a great recipe! Very easy if you follow the directions. I can imagine it flavored with all different kinds of extracts or chocolate! This recipe is a keeper.
Thomas Ross
Delicious! I used 1&1/2cups of whole milk & 1/2 Baileys Irish cream & reduced the sugar to 1/2cup. Everyone LOVED IT
Michael Pearson
Very good custard recipe. This is a custard like a semi-firm pastry cream to use in a layer cake or as a pastry filling. It is NOT the thinner custard popular in the UK for pouring over desserts, but a little extra milk would produce the pourable type of custard, also. A good quality vanilla extract makes this custard really delicious!
Sheila White
Turned out okay, but I was in a time crunch. Make sure to allow plenty of time to cool. Tasted perfect though. Would have been terrific.
Erica Simmons
I should have been forewarned by the oozing filling in the photo: I followed the instructions to the letter, and wound up with a runny mess. Running to the store now to buy some cook & serve vanilla pudding…
Alicia Velasquez
Loved it! I also did this on the stove and it came out wonderful. I took the advice of another review and substituted 3T of cornstarch instead of the flour and also added 2t of vanilla. I also ran out of milk and subbed in 1/2 and 1/2 and it was perfect!
David Harris
Used it as a cake filling. Everyone loved it and it wasn’t too sweet and runny like some other recipes I’ve tried. Thank you
Karen Lopez
Easy and awesome.
Rebecca Hernandez
SOOO YUMMY! One problem though — it kind of over spilled in my microwave during the 1 minute intervals. So, I didn’t microwave for the full 4 minutes, but anyways still turned thick so it was good. Definitely be making this again!!! We used it for cream puffs and on toast.
Michael Robinson
Delicious. Using for cream puffs
Randall Waters
I’ve made this custard twice, once for cupcake filling, and once for cake filling, and it turned out beautifully both times. I increased the vanilla the 2nd time, to 1 1/2 tsp, and liked it even more. It was a hit with everyone who tasted it both times.
Gabriela Mccann
Came out delicious
Andrew Velazquez
yummy! perfect and so easy
Joanna Wilson
Made on the stove using 3T cornstarch, came out PERFECT!

 

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