Preheat oven to 400ºF.

Combine dry ingredients and mix.

Combine water and vinegar.

Add wet ingredients to dry and mix.

Turn dough out onto floured surface and knead for two or three minutes (no need to overdo it).

Shape into a round (about 1½ to 2 inches high), then place on pan.

Dip a sharp knife into flour and cut an 'X' into the top of the loaf.

Bake 40 minutes.

Remove, and while hot, glaze with 1 tbsp melted or softened butter.