For this Glogg recipe, you get to choose if you want to add almonds and raisins. Also, you can use akvavit, vodka, whiskey, rum or schnapps together with bitter orange essence, instead of the bitter orange liqueur. Just make sure to never boil the mulled wine, because well, it needs to mull slowly to take in the aroma of the spices. Also boiling the mulled wine would evaporate the alcohol.