A sheet of pasta dough can act like a lab bench where color, texture, and chemistry quietly negotiate a truce. Home cooks turning dough into a vivid rainbow rely less on food dye than on an understanding of pigment stability and heat. Beet, spinach, carrot, and red cabbage deliver anthocyanins, chlorophyll, and carotenoids that must endure boiling without bleeding into cloudy water or collapsing i...More