1. Put strawberries in medium, heavy-bottomed saucepan and bring to a boil over medium heat, stirring often. Reduce heat to low and simmer, stirring occasionally, until fruit has broken down into small pieces, about 15 minutes.
2. Using fine mesh strainer, gently strain juice from strawberry pulp (save the pulp for smoothies!) and return juice to pan. Add remaining ingredients and boil, stirring occasionally, for about 20 minutes, until mixture is syrupy and has reduced by about 1/3. It should coat the back of a spoon.