Preheat your oven to 400°F / 200°C and line a rimmed baking sheet with parchment paper for easy cleanup.
In a large bowl, toss the trimmed asparagus spears with the melted lard or oil, salt, and pepper until they are evenly coated.
Slice each strip of bacon in half lengthwise, creating 8 long, thin strips. Tightly wrap one bacon strip around a bundle of 3 asparagus spears. Secure the ends of the bacon with a toothpick.
Arrange the 8 bundles in a single layer on the prepared baking sheet.
Sprinkle the minced garlic and chopped chives evenly over the tops.
Roast for 10 to 20 minutes. Thinner asparagus will be done closer to 10 minutes, while thicker spears may need up to 20 minutes. The asparagus should be tender-crisp and the bacon golden and crispy.
Carefully remove the bundles from the oven.
Garnish with additional fresh chives and serve immediately with ranch dressing for dipping.