Peel all root veggies and cut into 1-inch pieces.
In one pot, add potatoes, parsnips, rutabaga, and turnips. In a separate pot, add sweet potatoes and carrots. Fill both pots with water, enough to cover the veggies, and add ½ tsp salt to each.
Bring both pots to a boil, reduce to medium, and boil 20-30 minutes until fork tender.
Drain vegetables and return to their respective pots.
Add 2 Tbsp butter and 2 Tbsp milk to each pot. Mash and mix to combine, seasoning to taste.
Marble the two mashes together, serve, and enjoy!
Yields 12 servings marbled root vegetable mash.