01 -
Preheat oven to 350°F (175°C). Line a cupcake pan with liners.
02 -
In a large bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt.
03 -
In another bowl, whisk together oil, eggs, buttermilk, vanilla extract, and black food coloring until well combined.
04 -
Gradually add the wet ingredients to the dry ingredients, mixing until just combined. Fill each cupcake liner about 2/3 full.
05 -
Bake for 20-25 minutes or until a toothpick inserted into the center comes out clean. Let cool completely.
06 -
In a mixing bowl, beat heavy cream, powdered sugar, and vanilla extract until stiff peaks form. For a blood-red effect, mix in a few drops of red food coloring.
07 -
Once cupcakes are cooled, core the center and fill with raspberry or strawberry jam.
08 -
Frost with the whipped cream mixture.
09 -
Serve these chilling treats at your Halloween party and watch the surprise unfold!.