In a large bowl, add the warm water and sprinkle over the yeast. Set aside for 5 minutes so it can activate.
Once the yeast activates and becomes foamy add the milk, melted shortening, sugar, salt, eggs, strawberries, and 1/2 of the all purpose flour. Mix until everything is well incorporated.
Add the remaining all-purpose flour and mix until the dough is smooth and slightly sticky.
Place the dough into a greased bowl, cover it, and let it rise for 2 hours.
Lightly flour your working surface and knead the dough for a minute or two.
Gently roll the dough 1/2-inch thick with a floured rolling pin.
Cut donuts using a donut cutter or round drinking glass and then using a bottle cap or a small round circle cutter to cut the holes in the center.
Cover the donuts and let them rise for 45 minutes.
While the donuts rise, prepare the strawberry glaze. Mix the powdered sugar, strawberry preserves, and milk. Set aside.
Heat some vegetable oil to about 350 degrees and then fry the doughnuts for about 2 minutes on each side or until golden brown.
Coat one side of the donuts with the strawberry glaze and then garnish with fresh strawberry bits if desired.