Make the dough

• Press a hole into the middle of the flour and add the egg and icing sugar.
• Cut the cold butter into small pieces and knead it into the mixture until you get a smooth dough.

Chill the dough

• Wrap the dough in plastic wrap and chill in the fridge.

Roll out the dough

• Roll the dough between two sheets of parchment paper until it is paper-thin.

Cut and fill the cookies

• Use a square-shaped cookie cutter to cut out the cookies.
• Scoop a teaspoon of jam into the centre of each cookie.
• Fold the left and right edges together in the middle, then fold the bottom edge up over the middle.
• Cut a small heart out of the top edge with a small heart cookie cutter.

Bake

• Bake until the cookies are cooked through and golden brown.