For best flavor, make this dip a few hours or even a day ahead so the seasonings fully hydrate and the vegetables infuse the base; adjust thickness by adding a spoonful of sour cream to loosen or extra cream cheese to thicken, and taste again for salt after chilling since cold food can seem less seasoned. You can easily customize the heat level by adding more or less jalapeño or a dash of hot sauce, and swap in Greek yogurt for part of the sour cream for a lighter version. Be sure to drain corn and beans very well to avoid a watery dip, and if it sits out at a party, keep it chilled on ice and return leftovers to the fridge within 2 hours for food safety.