3 large eggs separated for 30 minutes at room temperature
1 cup heavy cream chilled
0.5 cup juice of lemon fresh
1 inch lemon zest fresh
0.3 teaspoon salt
1.3 cups sugar
0.5 cup butter unsalted melted softened
1.5 cups water
Equipment
bowl
frying pan
sauce pan
oven
sieve
hand mixer
skewers
muffin liners
Directions
Put oven rack in middle position and preheat oven to 350°F. Lightly brush 8 muffin cups with some of melted butter and chill 2 minutes, then butter again and chill 1 minute more. Dust cups with matzo cake flour, knocking out excess.
Beat together softened butter, 2/3 cup sugar, and 1/8 teaspoon salt in a large bowl with an electric mixer at medium-high speed until pale and fluffy, then add egg yolks, 1 at a time, beating until well blended. Beat in lemon juice and 2 teaspoons zest until combined.
Add flour and mix at low speed until just combined.
Beat whites with remaining 1/8 teaspoon salt in another bowl with cleaned beaters until they hold soft peaks.
Add 2 tablespoons sugar, a little at a time, beating, then beat until whites just hold stiff peaks. Stir one fourth of whites into yolk mixture to lighten, then fold in remaining whites gently but thoroughly. Spoon batter into 8 prepared muffin cups.
Blend remaining 2 tablespoons sugar and 1 teaspoon zest with your fingertips and sprinkle over batter, then bake until cakes are puffed, edges are golden, and a wooden pick or skewer inserted in center of cake comes out clean, 20 to 25 minutes. Cool cakes in pan on a rack 15 minutes, then lift out cakes carefully (tops will break easily) and cool completely on rack.
Bring all syrup ingredients to a boil, covered, in a 3-quart heavy saucepan over moderate heat, stirring occasionally, then remove lid and boil 10 minutes.
Pour syrup through a sieve into a bowl, pressing on and then discarding solids. Cool to room temperature.
Beat cream in a bowl with cleaned beaters until it just holds stiff peaks.
Spoon 1/4 cup syrup into each of 8 shallow bowls and top with cakes. Spoon whipped cream on top of cakes.