01 - Boil 2 cups water and steep Earl Grey tea bags for 5 minutes. Remove tea bags and stir in honey. Allow mixture to cool completely to room temperature before using.
02 - Set up a double boiler with simmering water. Whisk egg yolks and granulated sugar in a heatproof bowl over the pot for 3-4 minutes until mixture becomes pale and slightly thickened. Remove from heat immediately.
03 - Add cold mascarpone cheese to the warm yolk mixture. Whisk vigorously until completely smooth and no lumps remain. Set aside.
04 - In a chilled separate bowl, whip cold heavy cream using electric mixer until stiff peaks form. Do not overwhip.
05 - Gently fold whipped cream into mascarpone mixture using a rubber spatula. Fold until fully incorporated and mixture is light and fluffy. Avoid deflating the cream.
06 - Working quickly, dip each ladyfinger into cooled Earl Grey tea for just 1-2 seconds per side. Do not soak - biscuits should remain firm but moistened.
07 - Arrange dipped ladyfingers in a single layer at the bottom of 8x8 inch baking dish. Break biscuits as needed to fit snugly without gaps.
08 - Spread half of mascarpone cream evenly over first ladyfinger layer using offset spatula. Ensure complete coverage to edges.
09 - Repeat dipping process with remaining ladyfingers. Arrange second layer over cream, pressing gently to compact layers.
10 - Spread remaining mascarpone cream over second ladyfinger layer. Smooth top surface evenly with spatula.
11 - Cover dish tightly with plastic wrap. Refrigerate for minimum 4 hours, preferably overnight, to allow flavors to meld and texture to set completely.
12 - Just before serving, sift cocoa powder generously over entire surface using fine sieve. Add lemon zest as optional garnish. Slice and serve chilled.