Strawberry Sundae Sauce Recipe

Wash and mash strawberries, measuring out enough mashed berries to make 4 cups. In a Dutch oven, combine strawberries and sugar. Bring to a full rolling boil over high heat, stirring constantly. Stir in pectin. Boil 1 minute longer, stirring constantly. Remove from the heat. Stir in syrup and liqueur if desired. Skim off foam. Pour into jars or freezer containers, leaving a 1/2-in. headspace. Cool to room temperature, about 1 hour. Cover and let stand overnight or until set. Refrigerate for up to 3 weeks or freeze for up to 1 year. Serve with ice cream.