Place a large pot of lightly salted water (no more than 1 tablespoon) over high heat. Bring to a boil.
Add pasta and cook according to package directions until just al dente. Drain, reserving 2 cups of pasta water.
Meanwhile, in a medium bowl, whisk together eggs, yolks, Der Alpen Cheese, and Butta Schaf Cheese until well combined. Season with a pinch of salt and lots of black pepper.
Heat oil in a large skillet over medium heat. Add pancetta and sauté until just beginning to crisp – about 5 minutes.
Reduce heat, add drained pasta, and toss to combine and finish cooking.
Remove from heat and add in the egg-cheese mixture. Add just enough reserved pasta water to form a creamy sauce.
Serve topped with more grated Butta Schaf Cheese and pepper.