Preheat oven to 400. Wash potatoes and pierce several times with a fork. Bake for 50 min, remove from oven and cool. Lower oven temp to 350.
Cut potatoes in half, scoop out insides to leave a shell approx 1/4 inch thick.
Put insides of potatoes along with other ingredients (except garnish) in a large bowl, and blend by hand or with a hand mixer. Scoop back into potato shells, arrange on a baking sheet and bake for 10-15 minutes.
Sprinkle with paprika and chives and serve OR refrigerate for later to reheat for a quick snack.
If your child has a soy allergy but is not allergic to eggs or dairy, you could use "regular" milk, cheese, sour cream and butter.