Taco dip became a party staple across America in the late 1970s and 1980s, riding the wave of Tex-Mex food’s rise in popularity. The first known printed recipe appeared in a 1981 issue of Family Circle, though it was already making the rounds at potlucks and backyard gatherings in Texas well before that. The genius of the dish is its simplicity — a creamy, taco-seasoned base of cream cheese and sour cream that you pile high with whatever toppings you love: tomatoes, lettuce, salsa, cheese, onion. Terri Board’s version is the classic three-ingredient base, which makes it quick to pull together and endlessly customizable. Scoop it up with tortilla chips and it disappears fast.