- 1 butternut squash, halved and seeded
- 1 1/2 cups self-rising flour
- 1 1/2 cups quick-cooking oats
- 1 teaspoon ground cinnamon
- 1/2 teaspoon ground ginger
- 1/2 teaspoon ground nutmeg
- 1/4 cup butter
- 1/4 cup shortening
- 1/2 cup white sugar
- 1/3 cup packed brown sugar
- 1 egg
- 2 tablespoons milk
- 1/4 teaspoon vanilla extract
- Preheat oven to 400 degrees F (200 degrees C). Place butternut squash halves cut-side down on a baking sheet.
- Roast in the preheated oven until tender when pierced with a fork, 45 to 60 minutes. Let cool, about 15 minutes. Scoop flesh into a large bowl and mash until smooth.
- Mix flour, oats, cinnamon, ginger, and nutmeg together in a bowl.
- Beat butter and shortening in a bowl until blended, about 30 seconds. Add white sugar and brown sugar; beat until fluffy. Add mashed squash, egg, milk, and vanilla extract; beat thoroughly until dough is combined. Fold in flour mixture.
- Chill dough until firm, about 2 hours.
- Preheat oven to 375 degrees F (190 degrees C). Line 2 baking sheets with parchment paper.
- Drop 1-inch scoops of dough onto the baking sheets.
- Bake in the preheated oven until edges are golden brown, 10 to 12 minutes. Transfer to a wire rack to cool before serving.