Roasted Red Potatoes With Lemon

1 lemon, zest of , large removed in long strips with a vegetable peeler 2 tablespoons extra virgin olive oil , more as needed 1 teaspoon chopped fresh[...]

1/4 cup butter 1/2 teaspoon salt (or to taste) 1/8 teaspoon pepper 1 tablespoon prepared horseradish 2 teaspoons lemon juice 12 red potatoes, unpeeled except[...]