I think I finally have our family recipe down to a science for this hugely delicious and nutritious hot beverage, so I thought I'd share it. I use a Vitamix to both blend and heat it, but you could easily substitute that for a saucepan and whisk, though you'd have to figure out your powdered ginger proportions in that case.
2 Cups Almond Milk
1 TBSP Agave Nectar
1 TSP Turmeric
1/2 TSP Cinnamon
1/8 TSP Cardamom
Thumbnail-Sized Chunk of Fresh Ginger
Pinch of Black Pepper
Toss everything into the Vitamix and blend on high until it's hot. Easy-peasey.