Rhubarbs distinct flavor pairs nicely with the mellowness of the custardlike cake in this terrific dessert. Rhubarb Recipes Get ready for. Rhubarb Spice Cake with Lemon Sauce What a wonderful recipe Such a perfect medley of flavors. StrawberryRhubarb Custard Pie. Dairy-free-rhubarb-and-custard-cake-recipe-Free-From-Fusion.jpg' alt='Rhubarb Custard Cake' title='Rhubarb Custard Cake' />Rhubarb custard cake recipe. Reserve 3 tbsp of the custard in a bowl. Beat the rest of the custard together with the butter, flour, baking powder, eggs, vanilla and sugar until creamy and smooth. Spoon one third of the mix into the tin, add some of the rhubarb, then dot with one third more cake mix and spread it out as well as you can. Top with some more rhubarb, then spoon over the remaining cake mix, leaving it in rough mounds and dips rather than being too neat about it. Scatter the rest of the rhubarb over the batter, then dot the remaining custard over. Bake for 4. 0 mins until risen and golden, then cover with foil and bake for 1. Its ready when a skewer inserted into the middle comes out clean. Alternative To Pernod. Cool in the tin, then dredge with icing sugar when cool.