In muffin recipes, the instructions often say to stir the mixture till "just combined". Why does over-stirring the muffin mixture result in tough muffins? And how do you know if you did too much ...
I've tried many macaron recipes, and all have tasted very good. The problem is they always end up as a meringue, or looking like cookies. They usually don't have the "feet" that macarons are known ...