Alison Roman's caramelized shallot condiment (half of which reconstitutes into a pasta sauce with some starchy pasta water) is made from 2 ounces olive oil, 1 pound of shallots, a few garlic cloves, a can of tomato paste, and anchovies. I'm thinking of trying it out this week but all I have are red onions. Think I can get away with it? Recommend me some other substitutions.
I've seen that recipe on her tumblr and it looked fun and easy, but it also seemed relatively high-calorie compared to her typical recipes.
As for substitutes, I have no idea. I am very unfamiliar with shallots, other than that they're relatively mild in flavor.














