Jam filled cupcake recipe

Jam filled cupcakes http://www.arteatsbakery.com
1 cup (2 sticks) unsalted butter, room temperature, plus more for pan
1 1/2 cups all-purpose flour (spooned and leveled), plus more for pan
1 1/2 teaspoons baking powder
1 teaspoon salt
3/4 cup granulated sugar
2 large eggs, room temperature
1 1/2 teaspoons pure vanilla extract
1/2 cup plus 2 tablespoons whole milk
1 cup confectioners' sugar
1/4 cup unsweetened cocoa powder
1/4 cup seedless raspberry jam
12 raspberries, for garnish
Directions
Preheat oven to 350 degrees. Butter and flour a 12-cup muffin pan, or use liners. Combine flour, baking powder, and 3/4 teaspoon salt. In a large bowl, using an electric mixer, beat granulated sugar and 1/2 cup butter until light and fluffy. Beat in eggs, one at a time. Beat in 1 teaspoon vanilla. With mixer on low, beat in flour mixture in two parts, alternating with 1/2 cup milk.
Divide batter among prepared muffin cups. Bake until a toothpick inserted in center of a cupcake comes out clean, about 20 minutes. Let cool in pan 5 minutes. Transfer to a wire rack to cool completely.
Meanwhile, whisk together confectioners' sugar, cocoa, and 1/4 teaspoon salt. In a large bowl, using an electric mixer, beat 1/2 cup butter until light and fluffy. With mixer on low, gradually add cocoa mixture, scraping down side of bowl as necessary. Gradually beat in 2 tablespoons milk and 1/2 teaspoon vanilla. Beat frosting until light and fluffy, about 30 seconds.
Using a paring knife, cut a 1-inch-deep piece from the top of each cupcake (do not discard). Fill each hole with 1 teaspoon jam and replace cutout pieces. http://www.arteatsbakery.com