2 cups fresh blueberries

3 tbsp -> 1/3 cup of sugar (to taste)

2 tbsp sherry

1 tbsp lemon juice

1 tsp cornstarch

Mash blueberries in a saucepan with a potato masher

Bring to a simmer

Add sugar, sherry, and lemon juice

Simmer for 5 to 10 minutes

Mix cornstarch with 1/8 cup water and add to thicken