Unlike with cornstarch puddings, you don't need the egg mixture to boil. ... The pudding will thicken more as it cools.

Does pudding thicken in the fridge?

How long does it take for pudding to harden? Pour the pudding into a bowl and place in the fridge for 5 minutes. The pudding may seem thin, but will thicken as it cools. ... If it hasn't set, leave the pudding in the fridge a while longer.

Why is my pudding not getting thick?

The main way to thicken up pudding without adding additional thickeners is to make sure that you are aware of just how much you are mixing it up. If you mix it too vigorously, it can become too watery. If you mix it too little, the ingredients won't combine the way they should.