Special occasions call for special desserts, and this one fills the bill. Moist lemon cake, a bright lemon custard and a simple lemon icing come together to create the ultimate springtime dessert. Look for edible flowers at cake-supply stores. If unavailable, use sugar-coated gumdrops instead.

  • Hands-on time: 1 hour
  • Total time: 2 1/2 hours
  • Makes: 16 servings

Ingredients:

  • 1 cup unsalted butter, softened
  • 2 cups granulated sugar
  • 4 eggs
  • 1 tbsp grated lemon zest
  • 2 tsp vanilla
  • 3 cups all-purpose flour
  • 1 tbsp baking powder
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 1 2/3 cups milk
  • 2 tbsp lemon juice


LEMON CUSTARD:
 

  • 1 cup granulated sugar
  • 1 tsp grated lemon zest
  • 2 tbsp cornstarch
  • Pinch salt
  • 1/2 cup lemon juice
  • 1/2 cup water
  • 4 egg yolks, lightly beaten

LEMON ICING:

  • 1/2 cup unsalted butter, softened
  • 1/4 cup lemon juice
  • 1/4 cup whipping cream (35%)
  • 6 cups icing sugar
  • Edible flowers (such as violets)


LEMON CUSTARD:

In saucepan and using fingertips, rub sugar with lemon zest; whisk in cornstarch and salt. Stir in lemon juice and water. Bring to boil over medium-high heat, stirring; boil, stirring constantly, for 1 minute. Remove from heat.

Gradually stir one-third of the lemon mixture into egg yolks; return to saucepan. Cook over low heat, stirring constantly, until thick enough to mound on spoon and space remains after spoon is drawn hrough, about 2 minutes. Strain through fine sieve into bowl. Place plastic wrap directly on surface; refrigerate until cold, about 1 hour. (Make-ahead: Refrigerate for up to 24 hours.)

Meanwhile, in large bowl, beat butter with sugar until fluffy. Beat in eggs, 1 at a time; beat in lemon zest and vanilla. Whisk together flour, baking powder, baking soda and salt; stir into butter mixture alternately with milk, making 3 additions of flour mixture and 2 of milk. Gently fold in lemon juice to make curdled-looking batter.

Divide between 2 greased and parchment paper–lined 9-inch (1.5 L) round cake pans. Bake in 350F (180C) oven until cake tester inserted in centre comes out clean, 30 to 35 minutes. Let cool in pans on rack for 10 minutes; transfer to rack and let cool completely. (Make-ahead: Wrap in plastic wrap and store for up to 24 hours.)

LEMON ICING:

In large bowl, beat butter until smooth; beat in lemon juice and cream. Beat in sugar, 1 cup at a time, until smooth.

Halve cakes horizontally to make 4 layers. Spread half of the lemon custard over top of 1 of the layers; top with second layer, top side up. Spread with 1/2 cup of the icing; top with third layer. Spread with remaining lemon custard; top with remaining layer. Cover entire cake with thin layer of icing to seal in crumbs. Refrigerate until firm, about 30 minutes.

Cover cake with remaining icing.
Arrange flowers on top. (Make-ahead:
Cover loosely and refrigerate for up to
24 hours.)