I’ve been working on a technique to use flour to stamp breads with laser cut designs and have finally found a technique that works acceptably well for intricate patterns. The breads below were made with this Hawaiian Sweet Bread recipe. Here is the result after baking:
The pattern I chose is called the Flower of Life. It is a six-fold symmetry made with overlapping circles. Here is a video of the cardboard stamp being cut:
Once you have a cardboard stamp, you can moisten it with water to curve it slightly to fit the loaves. I did this by using a rubber band placed around the pattern and a can of corn meal. About 10 minutes before baking, while the oven is preheating, use a spray bottle with water to wet both the slightly curved pattern and the bread. Shake flour over the wet side of the laser cut cardboard pattern. Apply the pattern flour side down and press gently. Here is a picture of the flour coated wet cardboard being applied to the moistened bread.
If you’re careful, it should look like this before putting it in the oven:
I’ve heard that rice flour mixed with normal flour improves the outcome. You can also create these patterns with an X-acto knife in cardboard to achieve the same effect. Have fun tagging your loaves of bread!