The ultimate “low n slow” is the roux for a white sauce like parsley or Béchamel
So many cookbooks just write
“until it’s straw or hay colour” which glosses over the importance of what’s actually happening here
This stage is the most important, it takes zen patience, it’s ready when it’s ready, zone out, daydream a little but not too much, quietly think of your first lover and stir that pot a lil
I use number 2 on my oven and take my time, probably unlike your first lover
Impatience at this stage means you’ll need to over cook your milk to cook it out
It should slightly puff up, like a biscuit rising in the oven juuuuust before it turns golden
Nail this part and you’re golden