Raspberry Chipotle Sauce

This recipe was given to me by a friend I met online.  It is great with pork chops or as a barbeque sauce.  I haven't made this yet, but I have tasted some made by my online friend.  It is really good.  I have been told it is good as a glaze and really good poured over cream cheese and used as a dip.

1/2 cup finely diced onion
2 tsp minced garlic
2 tsp chopped chipotle chiles in adobo sauce
2 cups fresh raspberries, rinsed
1/2 cup raspberry vinegar
3/4 cup sugar
1/2 tsp salt

In a medium saucepan, heat olive oil over medium-high heat.  Add onions, and cook till soft and slightly carmelized, about 4 minutes.  Add garlic to the sauce pan and cook  for 1 minute.  Add chipotle chilies to sauce pan and cook, stiring constantly, for 1 minute. Add the raspberries and cook until soft, about 2-3 minutes.  Add the vinegar and use to deglaze the pan. Add the sugar and sat and bring to a boil.  Reduce heat to medium and cook until thickened and reduced by half, about 8-10 minutes.  Remove from heat and cool before storing.  For a clear glaze, strain with a fine mesh strainer pressing on the solids with the back of a spoon in order to extract as much liquid as possible.