Thermometers are already hitting 29°C with temperature feelings around 32 or 33. It’s this time of the year when I need cold drinks to keep me alive. I’m not a big soda fan (except when I’m on Finland in the Nordic Go Academy camp, they are so stocked on soda that I’m dragged in,) so my go-to drink is usually freshly squeezed lemonade with some ice cubes and sometimes a pinch of soda to make it fizz (and make it less acid.) Oh, and quite a bit of sugar. Even if I like sweet drinks, this has less sugar than a normal soda anyway.

But when I need a caffeine punch, my summer treat is cold-brewed yerba mate. You may know yerba mate as the typical Argentinian “herbal tea�, which is exactly what it is. You can have a quick look at Wikipedia to know what it is and how it works.

Fondness for yerba mate is an “acquired taste,� much like coffee or beer. It is bitter, grassy, weird. Then you start to appreciate it and then, suddenly, you crave it. Adding sugar makes the process faster, if you have a sweet tooth. From a personal point of view, the first time I tasted mate I thought it tasted like grass (much like nowadays when I drink green tea, even if I kind of like green tea.) Then one summer my shoemaking teacher brewed some cold and sweet mate with lemon juice, and it tasted great. I was a convert from then on, and have kept drinking since then.

During winter, I like my mate (which I don’t drink that often during cold weather, though) warm, drank as is custom in a hollowed and treated gourd. But during summer, there are few things that taste as good as some cold brew (or hot and then cooled down) mate with lemon (known in some parts of South America as tereré.)

Cold brewing, now that I mention, is the process of “brewing� something using only cold water. It is getting increasingly popular as a way of preparing coffee, specially in places where getting some good espresso is hard. To cold brew some coffee just pour a decent amount of ground coffee (a cup for each 4-5 cups of water, IIRC) in a bottle, fill with water and let it rest in your fridge for a couple days (stir a few times during the process.) After two days you’ll have a very good tasting cold coffee. For an extra flavour kick, before drinking I pour cold brew coffee through my Aeropress. And beware of not drinking the sludge at the bottom!

You can cold brew almost anything that can be tasted, so in addition to caffeinated stuff you can use fruits or herbs. In this case, they are known as Aguas frescas and we also prepare them at home so we have always something cold and natural to drink. Our favourite so far this summer is 2 sliced oranges, 15 hibiscus flowers for 2 litres of water and 24 hours of chill time. Add a little sugar to taste. In close fight, the peel without any white of a grapefruit and the pulp of that same grapefruit with 2-2.5 litres of water. Hibiscus is optional, sugar is mandatory afterwards. It's bitter, powerful and refreshing.

For cold brewing yerba mate, you follow the same basic procedure: some amount of mate, some amount of water and some lemon or orange if you like the taste. My personal amounts (nothing prevents you to change it depending on your love for bitter/citrus tastes)

With this amounts I usually add 1 teaspoon of sugar per glass to get it sweet enough. Be sure to remove the white from the lemon, it will be quite bitter if you don’t.

You can purchase yerba mate from Amazon, or if you live close to some South American market, you’ll definitely find some there. Which also lets you purchase your winter supplies: a gourd and a bombilla (the metal straw used to drink) in person, so you can ask for best sizes, materials and even ask about preparing. I have tasted Taragui and Rosamonte, and they are very good, most mates are pretty similar anyway. Once you get used to the taste though, getting some really good mate pays off.  It's also pretty good to have a good quality electric kettle. By the way, if you prefer sweet mate in the winter, add sugar to the heated water instead of adding sugar to the gourd. 

The recipe is easy, as there is no really a recipe, just a list of ingredients. You can do it with real coffee, but Nescafe espresso is quite a good coffee to make iced coffee. You'll need

As for quantities, find your own levels. I like my iced coffee strong and long, thus I can add anything from 4 to 6 teaspoons of Nescafe for a whole cup of water. And I use a little more sugar than coffee (5 for 4, 8 for 6).

Put the coffee and sugar in your cocktail shaker, add the ice cubes and one tablespoon of Nutella, more or less. Add water to suit your coffee taste, close and shake for a while. Once everything is well mixed, pour in a nice glass and enjoy your caffeine and sugar high, you deserve it.

Related posts:
Key lime pie (vegan friendly)
Snickerdoodles (tea time nutmeg cookies)
Gluten,dairy,egg-free dark brown cane sugar biscuit
Crispy apple pie (similar to the Danish aeblekage)

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