Ultimate Fried Potato Nachos with Cheesy Sauce

Ingredients

• 2 lbs russet potatoes
• 1 teaspoon salt
• ½ teaspoon black pepper
• ½ teaspoon smoked paprika
• Oil for frying
• 2 tablespoons unsalted butter
• 2 tablespoons all-purpose flour
• 1 cup milk
• 2 cups shredded sharp cheddar cheese
• ½ teaspoon garlic powder
• ½ teaspoon onion powder
• Salt and pepper to taste
• ½ cup diced tomatoes
• ½ cup sliced jalapeños
• ¼ cup chopped green onions
• ½ cup sour cream or Greek yogurt
• Fresh cilantro for garnish