Butternut Squash Gnocchi with Sage Brown Butter

Preheat oven to 400°F. Cut squash lengthwise in half; discard seeds. Place squash halves, cut side up, on baking sheet and brush with oil. Roast until squash is very tender when pierced with skewer and browned in spots, about 1 1/2 hours. Cool slightly. Scoop flesh from squash into processor; puree until smooth. Transfer to medium saucepan; stir constantly over medium heat until juices evaporate and puree thickens, about 5 minutes. Cool. Measure 1 cup (packed) squash puree (reserve remaining squash for another use).

Meanwhile, cook potato in medium saucepan of boiling salted water until very tender, about 20 minutes. Drain. While potato is warm, press through potato ricer into medium bowl; cool completely. Measure 2 cups (loosely packed) riced potato (reserve remaining potato for another use).