Roasted Cauliflower and Caramelized Onion Tart

I splurged! For this recipe, I admit, I splurged. I bought truffle oil. Weighing in at 8.45 ounces and costing $17.49, I can tell you one thing: it was worth it. Often when it comes to special ingredients, I’ll cut corners or look up substitutions. On this occasion, for a reason I don’t even know,…