01 -
Turn the oven on to 350°F (177°C) and get a 12-cup muffin tin ready with cupcake liners.
02 -
In a large mixing bowl, whisk together the flour, baking powder, and salt. Set the bowl aside.
03 -
In another large bowl, use a handheld or stand mixer with a paddle attachment to mix the butter, sugar, and lemon zest. Beat for around 2 minutes on medium-high until it's nice and creamy. Scrape the bowl as needed.
04 -
Stir in the eggs and vanilla. Beat on medium-high until everything blends together, about a minute. Scrape the sides of the bowl again.
05 -
Gradually add the dry mix to the wet ingredients. With the mixer on low, slowly pour in the milk and lemon juice. Stir just until everything combines—don't overdo it!
06 -
Divide the batter evenly into the cupcake liners. Bake for 18–21 minutes, or until a toothpick comes out clean when inserted in the center. Let them cool off fully before adding filling and frosting.
07 -
When the cupcakes are cool, use a knife to hollow out a small section in the middle of each cupcake about an inch deep. Fill the pocket with raspberry jam, adding 1–2 teaspoons per cupcake.
08 -
Take the small pieces of cupcake you removed and put them back over the jam-filled pockets.
09 -
In a bowl, beat the softened butter at medium speed for about 3-4 minutes until smooth. Add the powdered sugar, raspberry jam, milk, vanilla, lemon juice, and salt. Start mixing on low and then go to high speed for a minute, ensuring it’s all blended.
10 -
Top the cupcakes with the frosting using a piping bag and perhaps a Wilton 1M tip. If you like, decorate with a fresh raspberry and a lemon slice.
11 -
Pop the cupcakes in the fridge for an hour or more to let the frosting set before enjoying them.