Why didn't it work :(

[lisad123isasnuttyasaboxoffrogs]

I made millionaire shortbreads the other day, but the cameral came out too runny and it's leaking :(
I followed the recipe but it wasn't very thick when I cooked it, it said take it off heat as soon as bubbles appear. Any help please

You need to see it thicken and coming away from sides of pan if you know what I mean it needs to boil steadily and stir until you see it thicken up

It will go darker in colour too when it is ready. Keep stirring while it bubbles, very careful though as it burns in an instant.

You need to cook it for at least 25min,I had same prob first time x