Sweet and Sour Onion Marmalade (Pizza Sauce)

• 1/4 cup olive oil
• 4 large yellow onions, sliced wafer thin
• 4 cloves garlic, sliced wafer thin

Cook onions over medium heat until caramelized, about 20 to 25 mins.

• 3/4 cup sugar

Add sugar, stir until onions are coated and sugar melts / begins to bubble, about 3 mins.

• 1/4 cup balsamic vinegar
• 1/4 tsp salt.
• 1/8 tsp. black pepper

Move onions to sides of pan, pour vinegar into the center and reduce.  

Let cool completely before storing in airtight container.

This was a great sauce for pizza, with sausage and mozzarella cheese.