Kettle-Chip Nachos

Preheat oven to 400 degrees. Line a rimmed baking sheet with parchment; spread chips out in a single layer. In a small saucepan, whisk together cream cheese and milk over medium heat until combined, 2 minutes. Whisk in blue cheese and 1/2 cup Gouda. Bring to a boil and cook, whisking constantly, until thickened, 5 minutes. Stir in 1/4 teaspoon salt, 1/8 teaspoon pepper, and hot sauce.

Drizzle cheese sauce evenly over chips, then sprinkle with remaining 1 cup Gouda. Bake until bubbly and crisp at edges, 5 to 7 minutes. Top with jalapeno, sour cream, and chives; serve.