Preheat oven to 450 degrees and line a baking sheet with parchment paper, set aside.
Begin by mixing egg, milk, and garlic in an electric mixer (with a dough hook, if you have one).
In a separate bowl, sift together parmesan, salt, baking powder.
Cut your cold butter into cubes and add into your dry ingredients. Use a pastry cutter to blend all of the ingredients together.
Add the flour and butter mixture into your wet ingredients, while mixing on medium speed.
Once the dough has formed, sprinkle a clean working surface + your rolling pin with flour.
Roll the dough so that it’s about ¼ of an inch thick. Use your cookie cutter to cut them into heart shapes.
Place each heart-shaped dough on your lined baking sheet.
Fill every other heart-shaped dough with tomato paste and cheese. Top with another heart-shape and use a fork to press & seal all around the edges.
Brush each pizza pocket with melted butter and bake for 13 to 15 minutes, or until the crust starts to turn golden brown.