So I tried making dulce de leche, I've poured 1.5 litres of milk, 500g sugar and a teaspoon of vanilla extract.

I've waited for it to create foam that'll touch the rims and made sure the sugar is dissolved.

I lowered the heat and kept on stirring.

it's important to mention that I did not see at any given time that it went to the brownish color with the actual dulce de leche texture.

It felt like it went from beige to burnt brown without anything in between.

does anyone know why it happend?

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  • What was the fat content of the milk?
    – Sneftel
    Commented Dec 4, 2019 at 13:55
  • the milk had 3% fat
    – NewbieAeg
    Commented Dec 4, 2019 at 14:08
  • How low was the heat? For how long did you cook it? Burning is usually either high temperature or too much time. How does it taste, bitter?
    – Luciano
    Commented Dec 5, 2019 at 14:02
  • I've seen a video in YouTube that i can play with the heat to reduce the amount of the cooking as long as i dont let the milk's foam touch the rims. it actually tastes a lot like toffee. i also lost a sense of time lol , but probably more than 1.5 hours
    – NewbieAeg
    Commented Dec 6, 2019 at 22:43
  • Not an answer, but have you tried the cheats method of just putting a can of condensed milk in a pan of simmering water for 3 hours?
    – Gamora
    Commented Dec 10, 2019 at 11:41

2 Answers 2


I cannot be sure, but I think your sugar may have crystallized.

Here is a link with some information about sugar crystallization (see the section on grainy caramel). [Edit: here is a more in-depth link, which gives the same two tips but with more explanation.]

To summarize, the sugar crystals have a tendency to form a lattice of crystals, which become the grains in your grainy caramel. They can't do this when dissolved, but if some sugar falls to the bottom of your pot it can accumulate and crystallize there. The resource I link recommends corn syrup to prevent this, which has worked well for me many times when making caramels.


I tried it again with fewer amounts and it came out perfectly (also added baking soda) as I also waited the right amount of time after it turned brown(i think it was about 5-10 mins). and constantly took a sample to see how thick it is. thanks for your help!

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