In the UK, a cookie is a soft, squishy, and moist biscuit. But in America, a cookie covers both what Brits call a biscuit and what they call a cookie. The origin of the word is from the Dutch word “koekje”, which means “little cake”. ... An American cookie is basically what British people call a biscuit. A cookie is a baked or cooked food that is typically small, flat and sweet. It usually contains flour, sugar and some type of oil or fat. It may include other ingredients such as raisins, oats, chocolate chips, nuts, etc.
Cookies are a lot more loaded in terms of ingredients and flavours as compared to biscuits. They naturally take more time to bake too, considering its dense ingredient base batter. From chunky nuts to oats, chocolate chips and resins, cookies can contain them all. The moist and chewy texture of cookies differentiates it from the biscuits which are essentially just crusty baked butter breads. Originally, the first batch of cookies were actually a preliminary test to check the oven temperature for baking cake. Cooks used a small batch of cake batter to assess the temperature of their oven before baking. These small batches of ‘cakes’ were called "koekje", meaning "little cake" in Dutch. And that is how our dear cookies were born.