Combine first three ingredients in a mixing bowl and let sit about 5-8 minutes until yeast bubbles. Blend oats to make a coarse flour (use seed grinder). Grind flax to a coarse powder. Combine all ingredients and stir 1-2 minutes to develop gluten in the flour. Drom the dough onto an oiled cookie sheet. Let rise 5 minutes. Bake at 350 for 30 minutes, until the biscuits are golden. Yield 12 biscuits (1/4 cup each).
