Vanilla Cupcakes with Blackberry Buttercream

Ingredients:

• 3 cups sifted all-purpose flour
• 1 Tbsp baking powder
• 1 tsp baking soda
• ½ tsp salt
• 1 cup (2 sticks) unsalted butter, room temperature
• 2 cups sugar
• 4 eggs
• 1¼ cups buttermilk
• 1½ tsp vanilla extract
• 1 small jar lemon curd
• FROSTING
• ½ cup blackberries, pureed and strained
• 1 cup (2 sticks) unsalted butter
• 4 cups confectioner’s sugar
• ¼ tsp salt
• Additional blackberries for garnish