In a large bowl of standing mixer, sift all-purpose flour and make a small nest with your hand to place crumbled fresh yeast. Add sugar and half of the lukewarm milk. (If you are using dry yeast, place the yeast in a cup, add lukewarm milk and sugar, stir with a spoon & let rise for 10 minutes. Add it to the all-purpose flour and continue the recipe below). Within ten minutes the yeast should start to activate and become bubbly.
Add the remaining milk, eggs and salt and with hook attachment, knead until the dough is no more sticky. Allow the dough to rise for one hour, in warm place (cover the bowl with clean cloth).
Dump the dough on a flat surface, sprinkled with flour. Roll the dough 1/2 inch thick and cut out 3-inch large pieces with cookie cutter. You should be able to cut out at least 20 pieces.
Clean and cut strawberries on small pieces, place them in a medium bowl and sprinkle with sugar. Stir well. Put one tablespoon of strawberry mix on each cut out dumpling dough and close the dough by tucking it inside and shaping a ball. Once all the dumplings are shaped, cover them with clean cloth and let them rise for another 20 minutes.
In the meanwhile, prepare large sauce pot 10-inch, with water and secure cheesecloth on the edges of the pot. Tighten up well the cheesecloth on the handles of the sauce pot. You can also use stainless steel steamer, but make sure to either place clean cloth over it or brush it lightly with vegetable oil or melted butter, to prevent sticking. Bring the water to boil and add 1 tsp of salt.
Place the dumplings on the cheesecloth (or in the steamer), cover with a lid and steam for 8 minutes. After steaming, poke each dumpling with a fork, so the steam can escape and the dumplings remain fluffy.
Place the dumplings in large kitchen bowl and cover with plastic food wrap, so they stay warm.