Preheat oven to 350 degrees Fahrenheit
In a mixing bowl, sift together flour, baking powder, baking soda, and salt
In the bowl of a mixer, cream together butter and sugar for about 2-3 minutes until fluffy
Add in egg and mix until fully incorporated
Add in lemon juice, lemon zest, and vanilla
Next, add in half of the flour mixture and mix until incorporated
Then add in buttermilk
Finally, add the rest of the flour mixture and mix
Pour batter into a piping bag and cut a small to medium sized hole in the bag
On a parchment lined baking sheet or baking mat, pipe the batter into 12 two-inch mounds. Be sure to space each mound at least 2 inches apart.
Bake for 10-12 minutes until slightly golden brown around the edges
When finished baking, set on a cooling rack to cool
In a bowl, mix together butter and cream cheese until creamy, about 2 minutes
Add vanilla, salt and raspberry jam. Mix until incorporated.
Add powdered sugar 1 cup at a time
When the filling is finished, scoop into a piping bag
Turn the whoopie pie tops over and pipe filling leaving a small space in the center
Cut Raspberry Red Vines Twists into small pieces and place in the center
Place another whoopie pie on top, add more chopped Red Vines as desired and enjoy!