My mother recently sent me a recipe for date squares that she had copied down in a notebook in 1964. My youngest doesn’t like dates, so I substituted them with sultanas. I also left out the 1/4 tsp of ground coriander from the original, which I thought would go well with dates but not so well with sultanas, and doubled the cinnamon from 1/4 tsp to 1/2 tsp.
Ingredients
115g butter
115g light brown sugar
1 egg, lightly beaten
1/2 tsp cinnamon
1 cup all-purpose flour
1 1/4 tsp baking powder
1 cup sultanas
1 tsp vanilla essence
1/4 tsp salt
Directions
Preheat oven to 180°C (160°C convection).
Melt butter and add to a good-sized mixing bowl. Add sugar, salt, cinnamon, vanilla and beaten egg and whisk together with a fork. Stir in sifted flour, then fold in sultanas.
Pour into a buttered square cake tin and bake for 25 mins. Cut into squares while warm. Leave in tin until cold.
pizzarossa 
It worked very well with chopped prunes too! Rosie spiced them with nutmeg and lemon zest. Yummo!
Mmmm, they sound geat! The sultana ones are a big hit and the prune ones are next on my to-do list!