The Kitchn: Every party needs a seven-layer dip
1/2 cup finely chopped red onion (from 1 small red onion), divided
2 tablespoons finely chopped unseeded jalapeno (from 1 small jalapeño, optional)
16 ounces sour cream
4 ounces cream cheese, very soft
1 (1-ounce) package 25 percent less-sodium taco seasoning mix
2 cups salsa
2 cups shredded Mexican-blend cheese (8 ounces)
2 plum or Roma tomatoes, diced
1 tablespoon chopped fresh cilantro
1 (2.25-ounce) can sliced black olives, drained
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