Char the corn: Heat olive oil in a skillet over medium-high heat.
Add corn and cook 5–7 minutes until charred. Cool.
Make corn topping: In a bowl, combine mayo, lime juice/zest, garlic, chili powder, Tajin, salt, and pepper.
Add corn, cilantro, scallions, jalapeño, and cotija. Mix well.
Make jalapeño sauce: Purée cilantro, jalapeños, and brine.
In another bowl, mix mayo, sour cream, ranch, garlic powder, and salt.
See full steps with tips & photos → https://p4pd.org/smash-burger-tacos/