Dissolve yeast in warm water in a large bowl. Add 4 cups of whole wheat flour, gluten, oil, honey and salt. Beat until smooth and let rest about 10 minutes. Stir in sunflower kernels and enough remaining flour to form a medium firm dough.
Turn onto floured surface. Knead until smooth and elastic, 6 to 8 minutes. Place in greased bowl, turning once to grease top. Cover and let rise in a warm place until doubled, about 1 hour. Punch dough down. Divide into 3 portions. Shape into loaves and place in 3 greased loaf pans. Cover and let double — about 30 minutes. Bake in preheated 350°F oven about 35 to 40 minutes or until golden brown. Brush with 3 Tbsp. melted butter. Remove from pans to wire racks to cool.
Yield: 3 loaves