Ingredients
For the graham crust
- 2 tablespoons unsalted butter, melted
- 1/2 cup graham cracker crumbs
- 1/2 teaspoon sugar
For the cupcakes
- 1 1/3 cups loosely packed brown sugar
- 1 large egg
- 2 teaspoons vanilla extract
- 1/2 cup unsalted butter, melted and cooled
- 6 ounces cooked, mashed sweet potato
- 1 1/4 cups all-purpose flour
- 1 1/4 teaspoons baking soda
- 1/4 teaspoon salt
- 1/2 teaspoon cinnamon
- 1/4 teaspoon nutmeg
- 1/2 cup milk
For the frosting
- 1/2 cup butter (1 stick), softened
- 1 tablespoon vanilla extract
- 1 1/2 cups marshmallow fluff
- 3 cups of powdered sugar
- 1–2 teaspoons milk, if needed
Instructions
- Preheat oven to 350 degrees F. Line a cupcake tin with liners.
- In a small bowl, mix melted butter, sugar and graham cracker crumbs until moist, then press about 1/2-1 tablespoon of crumbs into the bottom of each liner.
- In a large bowl, whisk egg and sugar together until combined and no lumps remain. Add in vanilla extract and butter, then whisk in sweet potato. Add in flour, baking soda, salt, cinnamon and nutmeg, then add in milk and stir until combined and smooth.
- Drop about 1/4 cup of batter into each cupcake liner.
- Bake for 15-17 minutes, or until cupcakes are set and spring back at the touch. Let cool completely before frosting.
- In the meantime, make frosting by beating butter in the bowl of electric mixer until creamy. Add in fluff and beat for 2-3 minutes, then add in vanilla extract.
- With the mixer on low speed, add in powdered sugar 1 cup at a time until fully incorporated. Once all the sugar has been added, beat on medium-high speed for 2-3 minutes.
- If mixture if too runny, add a bit more sugar. If it’s too thick, add a bit of milk one teaspoon at a time.
- Frost your cupcakes and enjoy!