Gluten-free all-purpose flour is a blend of alternative flours like rice, tapioca, and bean. We like King Arthur Flour's Gluten-Free Multi-Purpose Flour for this bread.
- 1 stick unsalted butter, room temperature, plus more for pan
- 1 3/4 cups gluten-free all-purpose flour (spooned and leveled)
- 1 1/2 teaspoons gluten-free baking powder
- 1/2 teaspoon baking soda
- 3/4 teaspoon fine salt
- 1 teaspoon ground cinnamon
- 1/2 teaspoon ground nutmeg
- 1 1/4 cups sugar
- 3 large eggs
- 2 teaspoons pure vanilla extract
- 1 1/4 cups pure pumpkin puree
- 3/4 cup buttermilk
Preheat oven to 350 degrees. Lightly butter a 4 1/2-by-8 1/2-inch loaf pan. Whisk together flour, baking powder, baking soda, salt, cinnamon, and nutmeg. In a large bowl, using a mixer, beat butter and sugar on medium-high until light and fluffy, 7 minutes. Add eggs, one at a time, beating well after each addition and scraping down bowl as needed. Beat in vanilla. With mixer on low, gradually add flour mixture and beat until just combined. Add pumpkin and buttermilk and beat until just combined.
Transfer batter to pan, smooth top, and bake until a toothpick inserted in center comes out with a few moist crumbs attached, about 1 hour 15 minutes (cover with foil if overbrowning). Let cool in pan on a wire rack, 15 minutes. Turn out onto rack and let cool completely.