Start by activating your yeast: combine active dry yeast with half of the warm water (around 110°F) and let it foam for about 5 minutes. In a large mixing bowl, cream together unsalted butter, granulated sugar, kosher salt, and the remaining warm water. Stir in the egg yolk and the foamy yeast mixture. Gradually incorporate all-purpose flour until the dough is just combined and slightly sticky.

Lightly grease a 9×13-inch baking dish with melted butter. Transfer the dough into the dish, using your fingers or a spatula to spread it evenly. Once spread out, cover the dish with a clean cloth and let it rise in a warm place for 15 minutes. During this time, preheat your oven to 350°F, preparing for that perfect bake.

Once the dough has risen, gently remove the cover and brush the surface generously with remaining melted butter. Sprinkle an even layer of mozzarella and Parmesan cheese on top, followed by garlic salt and dried oregano. The cheese should be well-distributed, giving every bite of your Pizza Hut Cheese Sticks that beloved cheesy goodness.

Place the baking dish in the preheated oven and bake for 28-31 minutes. Keep an eye on the cheese sticks; they should turn a gorgeous golden brown and the cheese will be bubbly. This is the moment you want, as it creates that enticing aroma and perfect texture you desire!

After baking, remove the dish from the oven and let it cool for about 10 minutes. This cooling period allows the cheese sticks to firm up, making them easier to cut. Once cooled, slice into desired widths and serve with a side of marinara sauce for dipping, enjoying the delightful homemade Pizza Hut Cheese Sticks right from your kitchen.