Dissolve yeast in lukewarm water.

Set aside to activate the yeast.

Scald the milk.

Mix scalded milk, sugar, salt, and shortening in a large bowl until sugar and salt are dissolved and shortening is melted.

Let the mixture cool slightly.

Add 2 cups of flour to the milk mixture and beat until smooth.

Add the dissolved yeast mixture to the batter.

Gradually add the remaining 4 cups of flour, mixing until a dough forms.

Turn the dough out on a floured surface.

Knead the dough for 8 to 10 minutes until smooth and elastic.

Place the dough in a greased bowl, turning to coat.

Let rise in a warm place for 1 1/2 hours, or until doubled.

Punch down the dough.

Shape into a loaf and place in a greased loaf pan.

Let rise again for 30 minutes.

Bake in a preheated oven at 375°F (190°C) for 30-35 minutes, or until golden brown.

Let cool before slicing.