Ingredients
Equipment
Method
Step‑By‑Step Instructions
- Preheat your oven to 350℉ (177℃) and prepare cupcake pans with liners.
- In a medium bowl, whisk together cake flour, baking powder, and salt.
- Cream together granulated sugar, unsalted butter, and vegetable oil until light and fluffy.
- Gradually add egg whites, sour cream, vanilla extract, and vanilla bean paste to the creamed mixture and mix until smooth.
- Alternate adding dry ingredients and milk, mixing on low until smooth.
- Fill cupcake liners ⅔ full with batter and bake for 20 minutes.
- Cook berries, sugar, and lemon juice in a saucepan until bubbly, then thicken with cornstarch slurry.
- Beat mascarpone, powdered sugar, and vanilla extract until smooth, then add heavy whipping cream until medium-stiff peaks form.
- Once cooled, remove centers of cupcakes, fill with berry mixture, and pipe frosting on top; garnish with fresh berries.
Nutrition
Notes
These cupcakes are best enjoyed fresh but can be stored in the fridge for up to 3 days.
