3 shortcakes mixed citrus Recipes

citrus shortcake squares, each cut into 8 cubes, fat-free plain greek yogurt, sugar, divided, grand marnier (orange liqueur), divided, grated orange rind, strawberries, quartered, blackberries, halved

eggs, egg yolks, sugar, lemon juice, fresh, lemon peel, finely grated, coarse kosher salt (or more ), butter, cut into 1/4-inch cubes, unbleached all-purpose flour, sugar, baking powder, coarse kosher salt, lemon peel, finely grated, chilled unsalted butter, cut into 1/2-inch cubes, chilled heavy whipping cream, chilled heavy whipping cream, turbinado sugar, chilled heavy whipping cream, sugar, mixed citrus marmalade, powdered sugar