Thanks @pbv! I hope you enjoy.

Ingredients

Crepes:
6 eggs
2 tablespoons sugar
3 1/2 cups milk
1/4 cup (1/2 stick) butter, melted
1/2 teaspoon salt
2 cups flour
butter or cooking spray
Rosewater Pistachio Cream:
2 cups heavy whipping cream, ice cold
8 ounces cream cheese, softened
1/2 cup (1 stick) butter, softened
5 cups powdered sugar
1/2 teaspoon salt
1 tablespoon rosewater
2 teaspoons vanilla extract
1 cup shelled pistachios, roughly chopped
Optional:
fresh clean roses for decorative topping
Instructions

Crepes:
Whisk eggs and sugar in a medium mixing bowl until frothy. Add all other ingredients and whisk until smooth. Heat a skillet over medium heat and lightly grease with butter or cooking spray and pour (about 1/3 cup per crepe) batter into center of pan and use a spatula to quickly smooth into a smooth layer and cook for about 1 minute on each side or until slightly browned. Remove to a plate and repeat with remaining batter. It should make about 24.
Cover your stack of finished crepes loosely with plastic and place in refrigerator to chill for at least 2 hours (or in freezer for 1 hour if you're in a hurry, and it also helps if you divide the crepes into multiple stacks).
Rosewater Pistachio Cream:
Beat cream in the bowl of stand mixer fitted with whisk attachment until stiff. Scrape out into a separate bowl and set aside. Now beat together cream cheese and butter until completely smooth and lump free. Gradually add in each cup of powdered sugar, beating well after each, and whip until light and creamy. Add salt, rosewater, and vanilla and whip about 1 more minute until fluffy.
Fold in pistachios (reserve about 2 tablespoons for top of cake) then whipped cream until mixture is evenly combined.
Assemble:
Once crepes are completely cooled, use a large smooth-sided spatula to spread thin layers of cream onto each crepe and stack them on top of each other on a large plate. Continue until all the crepes are stacked then scrape out remaining cream onto top and gently spread to smooth. Top with the pistachios you reserved and fresh roses/petals if desired