Salted Vanilla Toffee Cookies

Name: Salted Vanilla Toffee Cookies
Prep time: 3 h 35 min
Cook time: 10 min
Total time: 3 h 45 min
Cuisine: American
Ingredients: 1 cup (16 Tbsp; 226g) unsalted butter, softened to room temperature; 1/2 cup (100g) granulated sugar; 1 cup (200g) packed light or dark brown sugar; 2 large eggs at room temperature; 2 teaspoons pure vanilla extract; seeds scraped from 1/2 of a vanilla bean*; 2 and 1/2 cups (313g) all-purpose flour (spooned & leveled); 1 teaspoon cornstarch; 1 teaspoon baking soda; 1/2 teaspoon salt; 1 and 1/2 cups Heath English Toffee Bits ‘O Brickle*; sea salt, for sprinkling