In a glass cup add the yeast, milk, a tablespoon of sugar and a tablespoon of the flour. Mix with a wooden spoon.
95 ml Milk, 8 grams Instant active yeast
Let the yeast foam for about 15 minutes.
Into a blender add the yeast mixture, egg, the rest of the sugar, salt, 30 grams of butter and water.
225 ml Water, 80 grams Sugar, 1 Egg, 30 grams Butter, 10 grams Salt
In a bowl add the mix of wet ingredients and with a spatula add the flour until you form a shaggy dough.
560 grams All purpose flour
Transfer the dough to a clean surface and knead by hand for about 10 minutes.
Alternatively you can use a stand up mixer with the hook attachment and mix the wet ingredient blended mixture and the flour and knead at speed 4 for about 5 minutes.
Wrap the dough in plastic wrap and let it sit for 1 hour in the fridge or overnight.
Cut the butter into 1 inch squares and place it between 2 sheets of plastic wrap. Gently roll it out until you form a flat square of butter about 8 inches per side. Chill it in the fridge for about 20 minutes.
225 grams Butter
Remove the dough from the fridge and roll it into a rectangle of about 8x16 inches.
Place the square of butter in one side of the rolled out dough. It should cover ⅔ of the rolled out though lengthwise.
Sealed the butter with the remaining ⅓ of dough by folding it over to the middle. Fold the other side over so the butter block is complete encased.
Turn the dough 90 degrees and continue rolling lengthwise. Fold the dough as a letter by folding the corners in ⅓ to meet in the center and then fold over one more time. This is know as the double fold or business letter fold.
If you feel like the dough is getting too warm, place in the fridge for 20 minutes before you continue working. If the dough is too warm your butter will melt.
Turn the dough 90 degrees and continue rolling lengthwise. Now fold the dough bringing one side to the center and folding the other side on top.
If you feel like the dough is getting too warm, place in the fridge for 20 minutes before you continue working.
Roll the dough into a rectangle with a narrow side about 10-11 inches long and about ¼ inch thick .
Trim the edges about ¼" all the way around. This removes the folded edges that would prevent the dough’s rise.
Cut the dough in thirds lengthwise and in half down the center. This will give you six 4" x 9" pieces. Cut these pieces in half diagonally to form triangles that have 2 equal long sides and a narrow base.
Stretch them gently to make them a little longer, then cut a 1" notch in the center of the base of each triangle with a pizza cutter.
Roll the triangles toward the tip with a V motion of the hands. Make sure the tip ends up under the bottom of the medialunas. Brush with egg wash.
Place them in a baking sheet and proof at room temperature for 60 to 90 minutes until doubled in size.
Bake at 420 Fahrenheit for 18-20 minutes until the medialunas are golden brown.
Brush with a simple syrup of equal parts sugar, water and honey.
Serve with your favorite jam or dulce de leche.