Add the onion to the pan and cook for 3 minutes, stirring occasionally.
Add the minced garlic and saute for 1 minute.
Add the spinach and cream cheese and cook for 5-7 minutes, allowing the cream cheese to completely melt and mix with the spinach.
Add the chicken broth and simmer for 5 minutes.
Stir in the grated Parmesan cheese and cook an additional 3-5 minutes.
Taste and season with salt and pepper.
If you prefer the creamed spinach to contain less liquid, let the broth simmer for a little longer.
Notes
If you want your spinach dip to be more creamy simmer for a little longer after adding the broth. If you like it a little looser, simmer it less to leave more liquid in.