Mix the sponge ingredients together. Cover and let it sit at room temperature 3 to 4 hours or overnight.
Stir down the sponge. In a large bowl, combine dough ingredients and the sponge. Knead until smooth and elastic. Knead in the Harvest Grains blend or your choice of seeds. Form a ball and put it into a large well oiled bowl. Turn once to coat both sides. Cover and allow to rise for 1 1/2 to 2 hours.
Lightly grease a baking sheet, or cover it with parchment paper. Turn out the dough out onto the baking sheet, and form it into a ball. Cover and allow it to rise for 1 more hour. Preheat the oven to 450 degrees F.
Gently but firmly slash the dough across the top and then spritz it with water. Bake the bread for 30 to 35 minutes, until it's a deep golden brown. Remove from the pan and allow the loaf to cool completely on a cooling rack prior to slicing.
This recipe was calculated using the exact brands and measurements I used to make this recipe. If you are following a strict diet please note changing anything will cause the nutritional info to change. My calculations are intended as a guide only.