*In heavy saucepan over med-low heat, slowly sauté oil, butter, and onion until onion is clear…about 5-10 minutes.  Add garlic and continue cooking over med-low heat for 2 minutes…do not brown onions and garlic. 

Sprinkle flour in and cook while stirring until mixture turns a golden-brown color…approx 5 minutes.  Slowly add chicken broth…the mixture will appear clumpy and pasty…don’t worry…it will turn out perfect.  Cook, whisking constantly until mixture is
smooth.

Bring mixture to a simmer.  Stir in cream.  Keep pot on the stove…while stirring, return mixture to a simmer. 

Remove from heat and add Parmesan cheese, lemon juice, and sugar.  Stir until combined.

Add sour cream, spinach, artichokes and jack cheese.  Stir until all ingredients are combined and cheese is melted.

Transfer to a baking dish. 

Just before serving, place baking dish under the oven broiler until top is broiled bubbly/brown as desired.  Serve with corn chips or pita chips.  Enjoy!