Pre-heat the oven to 450°F and prepare a large baking pan with parchment paper.
Lay the pizza dough flat on a floured surface.
Use a pizza cutter to cut the dough in five directions starting from the highest sides, and six on the widest. You will get 30 pieces.
One square of dough at a stretch, wrap 2-3 mozzarella pearls inside each square. Fold the edges inward and roll into a ball.
Place each ball, folded side down, on the parchment paper. Mark your Christmas tree shape with 7 balls.
Continue this process until you have wrapped all 30 balls and your Christmas tree is complete.
Use a silicone brush to coat the top of the Christmas tree with egg.
Bake for about 15-20 minutes, or until your Christmas tree's surface is golden.
Mix the butter, garlic, parmesan and basil while your tree bakes. Combine all ingredients until well combined
After the tree has been baked, apply the butter mixture to the entire surface and cover it completely.
Let cool down for five minutes, then serve with marinara sauce to dip.