Preheat the Oven and Prepare the Baking Sheet: Preheat oven to 400°F (200°C). Line a large baking sheet with parchment paper. This prevents the pinwheels from sticking and makes cleanup easier. Parchment paper also ensures even baking.

Prepare the Filling: In a medium bowl, mix together the cream cheese, ranch seasoning, cheddar cheese, jalapenos, and bacon. Set aside while you prepare the puff pastry. Make sure the ingredients are well combined to ensure even flavor distribution.

Prepare the Puff Pastry: On a lightly floured work surface, roll the puff pastry dough out into a 9×12-inch rectangle. This makes it easier to spread the filling and roll the dough. A lightly floured surface prevents the dough from sticking.

Spread the Filling: Spread the cream cheese mixture over the dough, leaving about a ½ inch of empty space on the long edge. This helps to seal the dough when rolled. An even layer of filling ensures consistent flavor in each pinwheel.

Seal the Edge: Wet the empty edge of the dough with water (or a beaten egg). This will help the dough stay together when rolled. Press gently along the edge to hold it together. The water or egg acts as a glue to seal the dough.

Roll the Dough: Roll the dough into a tight log, starting on the opposite long edge. This creates the pinwheel shape. A tight roll ensures the filling stays inside and the pinwheels hold their shape.

Slice the Log: Using a sharp knife, carefully slice the log into 12 equal-sized pieces. This ensures even cooking and consistent pinwheel sizes. A sharp knife or pizza cutter will create clean cuts.

Bake the Pinwheels: Place the pinwheels on the prepared baking sheet, spacing them evenly. Bake for 18-20 minutes, or until the dough is golden brown. Check for doneness by ensuring the pastry is flaky and golden. The baking time will vary depending on your oven.

Prepare the Garlic Butter: In a small saucepan over medium heat, combine the butter, garlic, parsley, and salt. Cook for 2-3 minutes, or until the butter is melted. This creates a flavorful topping. Avoid burning the garlic by cooking over medium heat.

Brush with Garlic Butter: Brush the garlic butter over the baked pinwheels. This adds a rich and savory flavor. Brush the pinwheels immediately after removing them from the oven.

Serve Warm: Serve the Jalapeno Popper Pinwheels warm. This enhances the flavors and textures. Warm pinwheels are more flavorful and have a better texture.