I can not find Zwieback toast anywhere around here, so I gave up and made my own. It was a bit scary because it involved yeast and baking, lol, but they turned out GREAT and W loves them!

Here is the recipe I used:

• 1 package active dry yeast (I used Highly Active Yeast and skipped steps 1,2, &5)
  
• 1/4 cup very warm water
• 1 cup milk
• 4 cups all-purpose flour
• 1 beaten egg
• 1/2 cup sugar
• 1/4 cup melted butter
• 1 teaspoon vanilla extract

1. Sprinkle dry yeast into water. Let stand for a few minutes, then stir until dissolved.
2. Scald milk and cool to lukewarm. Add milk and 2 cups of the flour to yeast. Beat thoroughly.
3. Stand in warm place for about 1 hour, or until mixture is light and bubbly.
4. Beat in remaining ingredients; if necessary, add a little more flour to make a medium-stiff dough.
5. Stand in a warm place and let rise until doubled in bulk.
6. Punch down and turn out on lightly floured board.
7. Knead for about 5 minutes.
8. Shape dough into 2-1/2" round buns. Place buns on greased cookie sheet, about 1 inch apart.
9. Allow to rise again in warm place until doubled in bulk.
10. Bake in preheated 400 degree F oven for 10 minutes.
11. Lower heat to 350 degree F and bake for 15 minutes longer.
12. Cool buns. Slice into 3/4 inch slices.
13. Return to 300 degree F oven and bake for 40 minutes, or until the slices are lightly browned on both sides.