Soften yeast in warm water. Add cottage cheese, sugar, onion, butter, dill seed, salt, baking soda, and egg. Beat to combine. Add flour gradually; beat. When dough is too stiff to use the electric mixer, stir in remaining flour with a sturdy spoon. I only used 2 1/4 cups of the flour, not 2 1/2. Knead lightly and transfer to a greased bowl. Let rise till doubled. Punch down dough and place in a greased loaf pan. Let rise again. Bake at 350-degrees for 40-50 minutes or until browned. Brush with butter and sprinkle with salt.