Julia Child said it best "Fat adds flavor" but actually too much will change the texture of the product as well as the taste.
A higher fat biscuit tends to have a "shorter" or more crumbly texture. Such as a shortbread biscuit or Vienesse whirl. Lower fat biscuits tend to have a higher sugar content and therefore have a firmed texture which is harder to the bite, such as a gingersnap.
Dough of any kind is kneaded to work up gluten, which makes the baked product chewy. Biscuit dough is kneaded very slightly to form a tender biscuit with a crumb that is more flaky than chewy.
There is no adjective for the noun biscuit. The noun is often used as a noun adjunct (e.g. biscuit dough).
Rolling pin
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shortcake
I 'need' to 'knead' the biscuit dough.
A rolled biscuit is generally made by rolling the dough out on a surface and then cutting it into shape, a drop biscuit is made by spooning dough into a pan at the desired location.
Yes. Biscuits are made of bread dough. This is a carbohydrate/starch.
The prefix "bi-" in the word biscuit means "twice" or "double," indicating a process of baking the dough twice to achieve a crisp texture.
Your question has two different answers. A drop biscuit is fluffier by nature because the dough isn't handled or "worked" as much. The rolled biscuit will tend to be flakier because of the process of rolling and cutting, just makes a biscuit flakier.
in the muffin method you include the fat with the liquids , in the biscuit method you cut the fat (cold) into the dry ingredients. Also, in the biscuit method, you have to knead the dough, roll it and cut it