You will surely fall in love with this Earl Grey Tiramisu, a delicate rendition of the original dessert with Earl Grey tea replacing coffee.
Add the water to a saucepan and and bring to a boil over medium-high heat, then remove from heat and add the tea bags and orange peel. Cover and steep for 10 minutes. Discard the tea bags and add the 2 tablespoons sugar. Stir until the sugar dissolves. Pour the tea through a strainer and set aside.
Beat egg yolks, Marsala, and remaining 1/4 cup sugar in a metal bowl set over a saucepan of barely simmering water using a whisk or handheld electric mixer until tripled in volume, 5 to 8 minutes. Remove bowl from heat. Beat in mascarpone until just combined.
Let tiramisu stand at room temperature 30 minutes before serving, then dust with cocoa powder just before serving.