Southwestern Au Gratin Potatoes

Name: Southwestern Au Gratin Potatoes
Prep time: 30 min
Cook time: 50 min
Total time: 1 h 20 min
Cuisine: American, Southern
Ingredients: 2 lbs yellow potatoes, thinly sliced; 1 small yellow onion, thinly sliced; 1 medium jalapeno, thinly sliced; 3 garlic cloves, minced; 2 1/4 C heavy cream; 2 C smoked pepper jack; 2 C medium cheddar cheese; 2 tbsp all-purpose flour; 2 tbsp unsalted butter; 1/2 tsp hot chili powder; 1/4 tsp ground cumin; 1/4 tsp dried Mexican oregano; 1/4 tsp seasoned salt, to taste; 1/8 tsp cayenne pepper, optional