Mix the flour, baking powder, salt, sweet paprika powder and herbes de Provence in a large mixing bowl.
Add the butter to the bowl and mix the butter and they dry ingredients using your hands. Knead well with your hands to make sure the ingredients are well mixed.
Add the plant based milk to the rest of the ingredients and mix with your hands. Knead the dough for 2 to 3 minutes.
Preheat your oven to 200 degrees celcius (392 fahrenheit).
Use a rolling pin to roll out the dough. work from the center of the dough when rolling it out. Roll until the dough is thin, about 2 milimeters. You can use a shaped form (e.g. round) to stick out shapes of the dough, or you can simply make squared crackers by cutting these out with a knife or better yet a pizza knife.
Sprinke some sea salt flakes over your crackers. To get the salt to stick gently roll over the crackers with your rolling pin. If you prefer plain unsalted crackers, simply skip this step.
Place your crackers on a baking trey covered with parchment paper. Bake in the middle of the oven for 10-12 minutes.
Let your baked crackers cool down on a cooling rack in room temperature. For the best result leave your crackers on the cooling rack over night - this lets them dry out and get extra crunchy.