Preheat your oven to 300°F (150°C) and line a baking sheet with parchment paper.
Melt the unsalted butter and stir in garlic powder, parmesan cheese, parsley, salt, black pepper, and red pepper flakes.
Add Ritz crackers to a large mixing bowl and pour the butter mixture over them, gently tossing to coat.
Spread the coated crackers in a single layer on the prepared baking sheet.
Bake for about 10–12 minutes or until golden edges form on the crackers.
Remove from the oven and let cool slightly before serving or storing.