(a) read the recipe, do the recipe, reflect on the success of the recipe and adjust accordingly. (b) read the recipe, order takeout. (c) read the recipe, pretend to make the recipe, go online and in the comments below the recipe, say
"This was FAB - except I added hand-milked yak cheese and a drizzle of truffle oil, and replaced the puff pastry with phyllo, and instead of bacon I used hand-reared North Appalachian Parma-style ham shavings....."
I am in high dudgeon over this. HIGH dudgeon. I reiterate - high dudgeon with a truffle-oil glaze.
Ideally you first get the recipe passed through a filter like this blog (just had a baby so most recent few entries are weirdly about shopping), and Esther (a quite competent cook) will do the adjusting for you and tell you which bits you don't need to bother with.