1/4C.blackberry pureeblackberries thrown in the blender, blend, then run through a strainer to remove seeds
Extra blackberries for decoration
Instructions
1. Preheat oven to 350 degrees and line pans with cupcake liners.
2. Sift cake mix into a separate bowl and set aside.
3. In a large bowl combine eggs, oil, zest, lemon juice, vanilla, milk and sour cream until smooth.
4. Stir in cake mix.
5. Bake for 17-22 minutes or until an inserted knife comes out clean.
6. Glaze: Combine all ingredients in a bowl (using a whisk or fork is easiest).
7. Buttercream: Beat butter until smooth. Add enough powdered sugar to make the frosting stiff, then slowly add in blackberry puree 1 Tablespoon at a time until you reach your desired consistency.
8. Spoon glaze over cooled cupcakes and let set.
9. When glaze is firm, pipe frosting on top and finish with a fresh blackberry.