In a large bowl, mix the dry ingredients: flour, salt, sugar, and instant yeast.
Add warm water and warm milk to the dry ingredients, along with a little olive oil. Stir everything together and knead the dough for a few minutes until it becomes smooth.
Transfer the dough in a greased pan. Cover the pan with a damp cloth and let the dough rest for about 1 hour, or until it has doubled in size.
Once the dough has risen, punch it down to release the air. Roll the dough into a large ball and divide it into 6 equal pieces.
Roll each piece into a small ball, then use a rolling pin to roll each ball out into a flat circle.
Heat a cast iron or non-stick pan over medium-high heat. Place the dough circles in the hot pan. When bubbles start to form on top, flip the bread over and cook the other side. Each side should cook for about 3-4 minutes.
Once cooked, remove the bread from the pan. Brush the warm flatbread with melted butter and sprinkle with crushed red pepper flakes and parsley or cilantro.
Serve the bread warm and enjoy!