Marrowfat peas are green mature that have been allowed to dry out naturally in the field, rather than be harvested whilst still young like the normal garden pea. They are used to make , and also the snack food. Marrowfat Processed Peas in water, with salt & sugar. Farrows Green Peas is very rich in "Proteins" and "Vitamins" and are particularly suitable for growing children and for adults whose daily occupation call for physical fitness and robust health.Farrows Giant Marrowfat Processed Peas are bigger than your average garden pea.