http://allrecipes.com/recipe/233321/fresh-raspberry-balsamic-vinaigrette/
Mix raspberries and sugar together in a bowl; set aside until mixture is juicy, about 10 minutes. Mash berries using a fork until liquefied. Pour berry mixture into a jar with a lid; add balsamic vinegar, olive oil, honey, and salt. Cover jar with lid and shake until dressing is mixed well. Store in refrigerator.