साल्टेड कारमेल मेल्टेड मिडिल कूकीज

Name: Salted Caramel Melty Middle Cookies
Ingredients: 160 grams salted butter, softened; 160 grams light soft brown sugar; 2 teaspoons vanilla paste; 1 egg; 230 grams plain flour; 1/2 teaspoon bicarbonate of soda; 1 teaspoon salt; 150 grams mixed chocolate chunks; 1 roll of Rolos; Sea salt flakes (for the top)