Ingredients:
- 1.5 cups (190g) all-purpose flour
- 1 cup (200g) granulated sugar
- 1.5 tsp (7g) baking powder
- 0.25 tsp (1g) salt
- 0.5 cup (115g) unsalted butter, softened
- 0.25 cup (60ml) neutral vegetable oil
- 2 large eggs, room temperature
- 1 tbsp (15ml) pure vanilla extract
- 0.5 cup (120ml) sour cream, room temperature
- 0.5 cup (120ml) whole milk, room temperature
- 1 cup (225g) unsalted butter, softened
- 3.5 cups (420g) powdered sugar, sifted
- 2 tbsp (30ml) heavy cream
- 1 tbsp (15ml) pure vanilla extract
- 1 pinch (1g) salt
Instructions:
- Preheat oven to 350°F (175°C) and line a 12-count standard muffin pan with paper liners.
- Cream together the softened butter, vegetable oil, and granulated sugar using an electric mixer until the mixture is pale and airy.
- Beat in the eggs one at a time, then stir in the vanilla extract.
- In a separate bowl, whisk together the all-purpose flour, baking powder, and salt.
- Gradually add the dry ingredients to the wet mixture, alternating with the sour cream and whole milk. Stir until just combined to avoid over-mixing.
- Fill each cupcake liner about 2/3 full. Bake for 18-22 minutes or until the tops spring back when lightly touched.
- Allow cupcakes to cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
- Prepare the buttercream by creaming the softened butter, then mixing in powdered sugar, heavy cream, vanilla extract, and a pinch of salt until smooth. Frost the cooled cupcakes.