Mix the cranberries, pears, sugar, ginger, cinnamon, and orange juice in a saucepan, at medium heat until it boils.
Reduce to low heat, until all the cranberries have been broken.
Dissolve the corn starch in water and add it to the mix, stirring constantly, until thickens.
Place it in the bowl in which you’ll serve it, sparkle the walnuts on top of the sauce, let it sit until it’s cold, and place it in the refrigerator until it’s time to serve it.