Bring a medium pot of salted water to a boil. Add the pasta and cook according to package directions until al dente. Drain and set aside.
8 ounces Macaroni, 1 teaspoon Salt
In a medium saucepan, melt the butter over medium heat. Once melted, whisk in the flour and cook for 1-2 minutes until lightly golden and bubbly, creating a roux.
2 Tablespoons Butter, 2 Tablespoons All-Purpose Flour
Gradually whisk in the milk, a little at a time, to avoid lumps. Continue whisking until the mixture thickens, about 5 minutes.
2 cups Whole Milk
Stir in the garlic powder, onion powder, smoked paprika, cayenne pepper, salt and pepper.
½ teaspoon Garlic Powder, ½ teaspoon Onion Powder, ¼ teaspoon Cayenne Pepper, ½ teaspoon Salt, ½ teaspoon Pepper
Remove from the heat and stir in the shredded pepper jack and cheddar, stirring constantly until melted and smooth.
8 ounces Pepper Jack Cheese, 4 ounces White Cheddar Cheese
Add the cooked pasta to the cheese sauce and stir until fully coated and creamy. Serve immediately.