Lemon Cupcakes with Blackberry Frosting

Ingredients

• ½ cup unsalted butter (=1 stick)
• 1 cup sugar
• 2 large eggs
• 1 ½ cups all-purpose flower
• 2 teaspoons baking powder
• ½ teaspoons salt
• ½ cup of milk
• 1 teaspoon lemon extract
• 1 teaspoon vanilla extract
• Zest of one lemon
• 1 cup (two sticks) softened unsalted butter
• 4 cups confectioner’s sugar
• ½ cup blackberries
• 1 teaspoon heavy cream
• Pinch of salt