Lemon Velvet Squares

Ingredients

• 2 ¼ cups sifted cake flour
• 2 ½ teaspoons baking powder
• ½ teaspoon salt
• ½ cup (cold)
• 1 teaspoon lemon zest
• ½ teaspoon freshly grated navel orange rind
• 1 1/3 cups superfine sugar or 1 1/3 cups caster sugar
• 3 large eggs
• 1/3 cup water
• 3 tablespoons fresh lemon juice
• ¼ cup fresh orange juice
• 1 cup powdered sugar
• 2½ tablespoon yuzu juice
• ½ tablespoon French Vanilla Half and Half
• 1 tablespoon meringue powder
• Drops of yellow food coloring
• Yellow sanding sugar (optional garnish)