I also have a grand marnier version which is wonderful. Too tired tonight to post it though.
For those that don't want to spend the cash on grand marnier, you can use any orange-flavored liqueur:
Grand Marnier (finer, and more expensive)
Substitutes: Cointreau (drier) OR Triple Sec (sweeter) OR orange juice (non-alcoholic)
Curaçao: made from orange peels. It comes in blue, orange, red, green, and clear versions that all taste exactly the same.
Sambuca carries an orange-flavored liqueur
Many, Many other local brandsorange liqueur Notes:
The best (and driest) is Grand Marnier, followed by Cointreau, curaçao, and--the sweetest of them all--triple sec. Substitutes: kumquat liqueur OR mandarine liqueur OR Sabra liqueur (This is an orange liqueur with a hint of chocolate.) OR Midori OR rum OR orange extract (1 teaspoon orange extract = 1 tablespoon orange liqueur)
Yes, different brands are different qualities... but if your purse is a deterrent from trying recipe, think alternatives!!
Always remember, there is an alternate for every single high dollar brand of liqueur regardless of the flavor.