Combine the warm water and yeast in a bowl and let sit for 5 minutes.

In a large mixing bowl, combine flour, salt, garlic powder, and olive oil.

Add the activated yeast mixture to the dry ingredients and stir until a dough begins to form.

Knead the dough for about 10 minutes until smooth and elastic.

Place the dough in a lightly greased bowl, cover, and let rise in a warm place for 1 hour or until doubled in size.

Preheat your oven to 375°F (190°C) while the dough rises.

Punch down the risen dough and turn it out onto a floured surface.

Roll the dough into a rectangle about 12x16 inches.

Sprinkle mozzarella and Parmesan cheese evenly over the dough, followed by chopped parsley.

Cut the dough into triangles, then stack them on top of each other, point side up, to form a tree shape.

Transfer the stacked dough onto a baking sheet lined with parchment paper.

Cover and let the bread rise for an additional 30 minutes.

Brush the top with beaten egg for a golden finish, then bake for 25-30 minutes.

Allow the bread to cool slightly before serving with marinara sauce.