Wedge Salad

Whisk together sour cream, mayonnaise, buttermilk, and lemon juice in a bowl. Stir in 1/2 cup cheese and chives, then season with salt and pepper. Cover and refrigerate at least 30 minutes (and up to 3 days) to allow the flavors to really meld.

Place bacon in a medium heavy skillet over medium heat. Cook, stirring occasionally, until fat is rendered and bacon is crisp, about 8 minutes. Using a slotted spoon, transfer to paper towels to drain. Reserve bacon fat for another use (it's delicious for pan-frying hash browns), or discard.

Halve cherry tomatoes (if using beefsteak, halve and squeeze out some seeds beforehand, so it's not watery, then cut into bite-size pieces). Season with salt and pepper; let stand 5 minutes. Cut lettuce through its core into 4 wedges; place each one on a plate. Spoon dressing on top and sprinkle with bacon, tomatoes, remaining 1/4 cup blue cheese, and more chives.