1-In a small bowl, combine the yeast: In a small bowl, combine the yeast with half of the warmed water (heated to 110°F) and set it aside for 5 minutes until it becomes foamy.
2-In a large bowl, place the thinly: In a large bowl, place the thinly sliced butter, sugar, and salt.
3-Pour the remaining warm water into the: Pour the remaining warm water into the butter mixture and allow it to sit while the yeast activates.
4-After 5 minutes, whisk the butter mixture: After 5 minutes, whisk the butter mixture until somewhat combined.
5-Add the egg yolk and yeast mixture: Add the egg yolk and yeast mixture to the bowl, then stir in the flour until just incorporated.
6-Prepare a 9×13 baking dish by brushing: Prepare a 9×13 baking dish by brushing it with 2 tablespoons of melted butter.
7-Spread the dough evenly in the dish,: Spread the dough evenly in the dish, cover it with plastic wrap, and let it rest for 15 minutes.
8-Preheat the oven to 350°F: Preheat the oven to 350°F.
9-Remove the plastic wrap from the dough,: Remove the plastic wrap from the dough, brush the top with the remaining melted butter, and generously sprinkle with mozzarella, parmesan, garlic salt, and oregano.
10-Bake for 28-31 minutes, until the edges: Bake for 28-31 minutes, until the edges are deep golden brown and the cheese is bubbly.
11-Allow the breadsticks to cool for 10: Allow the breadsticks to cool for 10 minutes before cutting into 8 even pieces.
12-Serve warm with marinara sauce for dipping: Serve warm with marinara sauce for dipping.