Mix the spelt and white flours together with the salt. Put half of the mixture in one bowl and half in another bowl.
In one bowl add 1/2 cup boiling water. Mix with a wooden spoon until the dough can handled. Knead for 2 minutes in the bowl.
In the other bowl, mix the baking powder into the flour. Add the cold water and mix with a wooden spoon until dough can be handled. Knead for 2 minutes in the bowl.
Incorporate both doughs together by kneading them into one another for 5 minutes on a lightly floured surface. This dough is very forgiving. If its too dry, simply add a bit of water. If it's too sticky, simply add a bit of flour. The dough should feel nice and moist but not stick to your hands.
Shape into a ball, and place in a bowl with a damp towel on top and let it rest at room temperature for 1 to 2 hours.
Cut the dough into 4 pieces.
Roll each one into a thin 9 or 10 inch circle.
Brush with one tablespoon of sesame oil and sprinkle with about 1/2 cup of garlic scapes, evenly distributed over the surface.
Roll the dough into a tight cylinder and pinch in the edges to seal. Coil this cylinder into a spiral and tuck in the end. Flatten it into a disc with the palm of your hand. Roll this out into a flat pancake, about 1/4 inch thick. Repeat with the remaining pieces of dough. Let the 4 pancakes rest for about 10 minutes before frying.
Meanwhile, make the dipping sauce by whisking all ingredients together.
Heat about 1 tablespoon of oil in a heavy skillet on medium heat. When the oil is hot, gently place the pancake into the pan and cook on each side for about 2 to 3 minutes or until nice and golden. Repeat with remaining pancakes. Cut the pancakes into wedges and serve hot, with the dipping sauce.