For the Crust:
300 g shortbread cookies - about 10 1/2 ounces
3 tablespoons caster sugar
1 tablespoon flour
1/4 teaspoon sea salt medium.
55 g unsalted butter, melted - about 1/4 cup
For the filling:
1 kilo strawberries - 2.2 pounds - 8 to 10 cups
65 g caster sugar - about 1/3 cup
3 tablespoons strawberry preserves
30 g cornstarch or about 1/4 cup
Pinch of sea salt
1 tablespoon citrus juice
For the topping:
Whipped cream