How to crochet waffle weave
1) the Swedish way of making pot holders and a nice waffle weave scarf
2) a little different waffle stitch video tutorial
3) waffle weave technique or the "Siberian Stitch"
Waffle weave is great as base for "Swedish Weave" or "huck weave" embroidery. It's even called "Waffle Weave" in Finnish and Swedish.
It's called "oitinho" in Portuguese, and it's very popular in Brazil.
Here's a tutorial and some patterns in Portuguese.
In Spanish it's called "Punto Yugoslavo", and it's just as popular in Spanish speaking countries :-D
Now if one only could get some time to do something...