1/2 Cup cracked wheat
1 Cup all-purpose flour
1 Cup whole-wheat flour
1 Tbsp granulated sugar
1/2 Tsp salt
1/2 Tsp baking soda
1/3 Cup soft margarine
3/4 Cup buttermilk
1 Egg white
1 Tbsp water
2 Tbsp poppyseeds
In bowl, combine sesame seeds, cracked wheat, all-purpose and whole-wheat flours, sugar, salt, baking soda; cut in margarine.
Add buttermilk; mix well.
Shape into 6 balls about the size of a lemon; roll out on lightly floured surface into circles less than 1/8 in/3 mm thick (as thin as you can).
Using spatula, transfer to ungreased baking sheet.
Topping: Combine egg white and water; brush over top of circles.
Sprinkle with poppyseeds.
Bake in 400°F/200°C oven for 10 minutes or until golden brown.
Let cool on wire rack until crisp.
Break in smaller pieces and store in airtight container.