If you like extra saucy enchiladas I recommend doubling the sauce!
To warm the tortillas, I like to spread them out on a baking sheet and warm them in a 200°F oven for 10 minutes or until they've warmed through.
To blend the sauce, I like to use an immersion blender. You can also transfer the sauce to a food processor or stand blender, but be sure to vent the heat while you blend it.
Recipe adapted from Rick Bayless