1. Crisp Crackling Crusts
2. Crispy Crackling Crusts
(Which one is correct? Are both OK? What is the meaning of 'crackling'")
Both are correct.
Crackling implies a crispy texture. Here's the definition from Dictionary.com.
"to make slight, sudden, sharp noises, rapidly repeated."
When you eat these crusts, you crunch on them, making a slight, sharp noise with your teeth.
Both "Crisp Crackling Crusts" and "Crispy Crackling Crusts" are grammatically correct. The choice between "crisp" and "crispy" depends on personal preference and style.
The word "crackling" refers to a sound or sensation produced when something is cooked at a high temperature and becomes dry and crispy. In the context of crusts, "crackling" describes a crispy texture that is achieved when baking or frying. It implies a satisfying, crunchy quality that is often desired in certain foods like bread, pastries, or roasted meats.