The broth is the canvas, but the toppings are where you flex. Thinly sliced raw beef (bò tái) cooks instantly in the hot liquid. Beef brisket (bò chín) adds richness. Fatty brisket (gầu) is a luxury worth seeking out.
Bean sprouts, Thai basil, sawtooth herb, lime wedges, and sliced chili—each adds a different note. Don’t just dump them in. Layer them: greens first, then herbs, then a squeeze of lime. Taste after each addition.
Fun fact: In Vietnam, a proper bowl of pho includes no hoisin sauce or sriracha. That’s a Western invention. But if you like it, add it. Your pho, your rules. Authenticity is a living thing.