Buttery Fruit Squares Recipe - Grit

Ingredients

• 2-1/2 cups all-purpose flour
• 1/2 teaspoon baking powder
• 1/2 cup sugar
• 1 cup softened butter
• 1 egg
• 1 tablespoon lemon juice
• 4 tablespoons sugar (more if using tart fruit)
• Grated rind of 1 lemon
• Lemon juice to taste
• 2 tablespoons cornstarch
• 4 tablespoons sugar for topping