How to Make Gluten-Free Soft Pretzels
September 19, 2012
Soft pretzels are just about perfect. They're chewy, salty and great with everything from a beer to a salad. The thing is: they're chewy. And gluten-free flour doesn't do chewy well.
But this year I decided I didn't want to go through another football season or Oktoberfest without one of these chewy wonders. A few months ago, I started tinkering with a soft pretzel recipe.
Since gluten, the protein found in wheat and other grains, is responsible for the distinctive soft pretzel chew, I began by focusing on the flour blend. Since the flavor of pretzels is rather subtle I first used white rice flour and tapioca starch. I hoped the white rice flour would be bland enough to fade into the background while the tapioca starch, along with a little xanthan gum, provided chew. It worked. Sort of.
The white rice flour was so bland that the pretzels tasted flat, and since I only used a little tapioca starch, there was very little chew. One of my first tasters said, “These taste like they want to be soft pretzels but just aren't. They're odd.”
Since I didn't want bland pretzels, I replaced the white rice flour with brown rice flour. While the flavor was better, the pretzels were unappetizingly grainy. Combining the white rice flour and brown rice flour solved this problem.
During testing, I increased the amount of tapioca starch in the recipe. From previous experience, I knew that too much tapioca starch could make a recipe gummy. I added it cautiously, and one day, after using 3/4 cup of tapioca starch, I pulled a baked pretzel apart. There was some resistance as I tore the pretzel and the crumb had the tight appearance of wheat-based soft pretzels. When I took I bite, the pretzel felt chewy! Finally, a gluten-free soft pretzel that was chewy and flavorful.
But texture isn't the only characteristic unique to soft pretzels. They need to be dark brown and shiny. Commercial bakers achieve this by boiling the pretzels in water with a little food-grade lye, a powerful alkaline. The solution turns the dough slightly yellow during boiling and aides the Milliard reaction during baking ,causing the pretzels to darken.
Since I didn't have any lye on hand, I used an alkaline that I did have in the kitchen: baking soda. While baking soda isn't nearly as powerful an alkaline as lye, it did turn the dough slightly yellow during boiling. The finished pretzels, however, were a little too light for my liking.
Adding additional baking soda wasn't solving the problem. On a whim, I added some granulated sugar to the solution. I hoped the sugar would help turn the pretzel a nice golden brown.
It worked! And best of all, the additional sugar didn't add sweetness to the pretzels, just a lovely golden brown color.
Now, with a pretzel in hand, I'm ready for football season!
Here's how to make 'em!
When mixed, the dough should be stiff but not dry. It won't form a dough ball in the stand mixer.
After two minutes of mixing, no dry ingredients should cling to the bottom or sides of the mixing bowl. If dry ingredients remain, add one to two tablespoons additional water.
Turn dough out onto a lightly white rice floured surface. Don't use too much flour. Just a light dusting to prevent the dough from sticking to the counter is all you need.
Gently knead dough into a ball. Gluten-free dough requires a light touch. Once the dough forms a ball, stop kneading and place into an oiled bowl to rise. Be sure to brush or spray the top of the dough with oil to prevent a skin from forming.
Allow dough to rise until doubled in size. This usually takes about an hour but the time varies depending on temperature.
Turn dough onto a very lightly white rice floured counter. Too much flour on the counter makes it hard to shape the pretzels. A light dusting of white rice flour will do.
Divide dough into equal portions. (A bench scraper works well for cutting the dough.)
Knead each dough ball until it becomes smooth. It should lose its shaggy appearance.
Roll out into 12-inch log. Take care not to use too much flour on the countertop. If the dough has too much flour on the surface, brush it off with a pastry brush.
Gently turn dough into an upside down "U."
Twist ends together.
Press the ends into the bottom of the "U". You want to be sure the dough sticks to itself, so it doesn't come apart while boiling.
Boil pretzels until they float.
Once boiled, the pretzels turn slightly yellow. (The four pretzels on the left have been boiled. The two pretzels on the right have not been boiled.) Salt pretzels and bake.