Ingredients
Equipment
- Blender (immersion or drink blender with access hole so you can add while it's running cleanly and safely)
- Milk pan bigger than your milk but small enough for the blender to be immersed (you can always move it to a mixing bowl for step 9.2.1)
- Jug for storage if not using it in your main recipe right away
- Sieve
- Food thermometer
- Dishcloth/kitchen cloth
- Make sure it's all clean and dry
Ingredients
- Eggs
- Milk or alternative milk replacement
- Optional: Vanilla or extract of choice
- Optional: Cream (if your recipe calls for it)
Instructions
- Get a small bowl.
- Crack the eggs and discard shells as appropriate.
- If not using the whole egg, carefully separate at this stage.
- Whisk well until smooth, sieve the eggs intended for use into the other small bowl to remove any lumps.
- Wash the sieve after (or grab a new one if you have multiple).
- Read up to the end, you want to work quickly and knowing what to do with each type of blender here helps.
- Get a pan, put milk in pan, leave a small part (about a third) fridge cold to cool the mixture after pasteurising/cooking the eggs in the heated part.
- The cold milk helps avoid them scrambling as you move to your main recipe or for cooling quickly and smoothly if storing.
- Heat milk of pan to 70°C ensuring it doesn’t get too hot, this will ruin your eggs. While heating move onto next step.
- Get your blender plugged in and your eggs ready.
- Once it reaches the desired temperature, remove from the heat and turn it off.
- If it’s a drink style blender:
- Put your eggs in the blender and about 1 tbsp of the cool milk to help it move properly.
- Turn on the blender.
- Through the access hole pour the milk in a thin steady stream until it’s all gone.
- Leave blending for another 15 – 30s on medium-high.
- Pour in cold milk in a thin stream to stop it cooking. Blend for a further 5 – 10s.
- If it’s an immersion blender:
- Have the eggs ready.
- Put the blender in the milk and turn it on.

Heated milk with immersion blender sat inside the mix - Add the eggs slowly while the blender is running.

Eggs being poured in while blender is on - Leave blending for another 15 – 30s on medium-high.

Blender tempered eggs and milk - Pour in cold milk (or cream if it’s convenient for your recipe) in a thin stream to stop it cooking. Blend for a further 5 – 10s.
- If it’s a drink style blender:
- Get a fine sieve (or as fine as you have) and a bowl big enough for your mixture.
- Sieve the mixture into the bowl to remove lumps and unwanted foam.
- If continuing recipe: Transfer back to pan and enjoy continuing on your main recipe (keep stirring making sure to avoid burning the bottom of the pan
- If storing: Cool using an ice-bath to quicken the process if you’re cooling it for storage.
- Once cool, move it to your storage container and cover the mix with a layer of baking paper and cling film, or your favourite wrapping method that covers the surface of the custard to stop it forming a crust/skin.
Notes
You don’t need to use the full recipe fluid if this is for another recipe, you can temper it with a good enough amount and add it to the rest to heat or cool.
Rinse your sieve quickly, it makes it a lot easier to clean afterwards.
Milk, cream and such dairies can usually be used interchangeably in the same way.