Whisk the egg yolks and sugar in a large bowl over a double boiler until the sugar has melted and the mixture is pale yellow.
Remove from the heat and mix in the mascarpone cheese.
In a separate bowl, whip the heavy cream until medium-stiff peaks form.
Fold the whipped cream into the mascarpone mixture.
Fold the peach curd or preserves into the cream.
Assemble
Pour the coffee into a wide bowl, and dip the bottom of each cookie in the coffee. Dip each cookie for 1-2 seconds.
Layer the cookies in an even layer over your serving dish.
Sprinkle half of the peach pieces over the cookies.
Spread half of the mascarpone filling over the peaches.
Repeat with the rest of the cookies, chopped fruit, and cream, then refrigerate for 6-10 hours.
Topping
Right before serving, whip the heavy cream and powdered sugar until stiff peaks form.
Top the tiramisu with the whipped cream and decorate with the peach slices.
Notes
Store the dessert in the refrigerator for up to three days.
Cooking the egg yolks and sugar over a double boiler is optional, but I like to take an extra step in no-bake recipes that call for raw eggs. Another option is to use pasteurized eggs.
Flavoring the coffee with peach schnapps or other liquor is an option, but remember it will contain alcohol.
Consider adding almond extract to the filling and top with sliced almonds.
This recipe yeilds one 8, or nine inch dish, or 8 personal desert cups.