Put dates in a bowl with enough hot water to cover dates and let sit for 45-50 minutes. Drain dates in a colander then with hands, squeeze to remove excess liquid from dates as much as possible.
Chop dates then put dates into a blender or food processor with Dijon mustard, red wine vinegar and soy sauce. Puree the mixture until smooth. Transfer into a bowl and add salt and black pepper to taste.
Season pork ribs with salt and black pepper. Put ribs and pureed dates mixture into a resealable plastic bag. Rub on the ribs. Refrigerate for 3 hours or up to half day.
Place pork ribs on a lightly greased baking pan and bake in preheat 400 degrees F oven for 35-40 minutes or until ribs are cooked through.