Mix water, sugar, and yeast in a large bowl and let sit 10 minutes.
In a medium bowl, whisk the eggs, salt, and evaporated milk together.
Add egg mixture to yeast mixture and mix.
Stir in 3 cups of bread flour. (A wooden spoon is good for stirring.)
Add shortening and stir it in. Stir in remaining flour.Note: The video above shows melted shortening being used, but there is no need to melt the shortening. It will mix in just fine in solid form.
Place dough on a lightly floured surface and knead until smooth.
Coat a large bowl with oil, place dough in bowl and cover with plastic wrap.
Let rise at least 2 hours or place in refrigerator overnight.
Pour about 3 inches of oil in a Dutch oven and heat to 350 degrees.
Roll dough to 1/4-inch thickness and cut 2-inch squares. (This is easy to do with a pizza cutter.)
Working about 4 at a time, place in oil and fry, flipping continuously until they are golden brown.
Test one to make sure it is cooked through. Drain on paper towels and coat with powdered sugar.