Summarize the following:
Commercially-made chocolate or vanilla almond milk is usually fairly high in sugar content, containing more than 20 g (1.7 tbsp.) of sugar per serving. Stir in 1 tbsp. (12 g or 14.8 ml) of the sweetener for every 4 cups (0.95 l) of unsweetened almond milk. Stir very well, until the granules dissolve. Add more, if desired. Flavoring should be done to taste, starting with the measurements below. You can measure enough flavoring to mask the taste of the almond milk altogether or simply to enhance it.  Pour in 1 tsp. (4.9 ml) of vanilla extract for every 4 cups (0.95 l) of almond milk. Double the amount if you prefer a strong vanilla taste. Stir well. Create a stronger almond taste by adding almond extract. Pour in 1 tsp. (4.9 ml) of almond extract for every 4 cups (0.95 l) of almond milk. Stir well. Add 1 tbsp. of sugar or agave syrup and 2 tbsp. (14 g) of cocoa powder to 4 cups (0.95 l) of unsweetened almond milk to create chocolate almond milk. Add a pinch of salt. Stir well, until everything has dissolved. Withhold the sugar if you are using plain, sweetened almond milk. Add 1 tbsp. of sugar or agave syrup, 1/2 tsp. (1.3 g) of cinnamon, 1/4 tsp. (0.5 g) of nutmeg and 1/8 tsp. (0.25 g) of cloves to 4 cups (0.95 l) of unsweetened almond milk to create chai almond milk. Do not add the sugar if you are using sweetened almond milk. Stir well. The longer you allow the spices to sit in the milk before drinking, the stronger the taste will be.

Summary:
Buy plain or unsweetened almond milk, if you are going to flavor it yourself. Sweeten almond milk with maple syrup, honey, agave nectar or granulated sugar. Add 1 of the following flavorings to your milk, according to the flavor you prefer.