Potato Frittata

Name: Potato Frittata
Ingredients: 12 large eggs; ½ cup heavy cream; 2 tsp. Diamond Crystal or 1 tsp. Morton kosher salt, divided; 1 tsp. freshly ground pepper, plus more; ½ cup finely chopped cilantro; ¼ cup vegetable oil; 1 large russet potato (about 8 oz.), peeled, cut into ⅛-thick matchsticks; 1 small onion, thinly sliced; 3 garlic cloves, thinly sliced; Flaky sea salt; Sriracha (for serving)