Slice n' Bake Salted Chocolate Butter Pecan Cookies

Bahan-bahan (24 porsi)

• 2 sticks (16 tablespoons) salted butter, at room temperature
• 2 teaspoons vanilla extract
• 1/2 cup dark brown sugar
• 1 3/4 cups all-purpose flour (plus 1/4 cup more, as needed)
• 3/4 cup raw pecans (very finely chopped)
• 1 large egg, beaten
• 1 cup coarse turbinado sugar
• 1 1/2 cups semi-sweet or milk chocolate (melted)
• flaky sea salt