Tomato Salad With Jalapeño Ranch

Ingredients

½ cup mayonnaise½ cup plain thick yogurt (such as Greek or labneh)1 large jalapeño, stem removed1 tsp. finely grated lime zest1 tsp. garlic powder1 tsp. MSG (optional)½ cup (packed) coarsely chopped chives, plus more for servingKosher salt2½ lb. mixed heirloom or beefsteak tomatoes, halved, cut into wedges if large2 Tbsp. extra-virgin olive oil1 garlic clove, finely gratedFlaky sea salt

Method