Pulse the fresh cranberries in a food processor until coarsely chopped, then transfer to a bowl. You should see uneven, chunky cranberry pieces rather than a smooth paste.

Pulse the orange and apple in the food processor until finely chopped. Stop once the mixture is broken down but not fully puréed, and you should still notice small flecks.

Stir the chopped orange, chopped apple, and sugar into the coarsely chopped cranberries. Mix until the sugar is evenly distributed throughout the mixture.

Cover and chill the relish for at least 4 hours or overnight so the sugar dissolves and the flavors meld. The texture should look thicker and the mixture should be glossy once the sugar has absorbed moisture.

Stir in the chopped pecans just before serving. Taste and adjust if needed, and serve immediately for the crunchiest bite.